modiloader | afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fced

Analysis

max time kernel
119s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11/12/2024, 14:45

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General

Target

afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
Size

326KB
MD5

5cbc5ef6761c90a134f45afa65b218c0
SHA1

32fae4542e99ea33e588a093c0b3df7447fcccbf
SHA256

afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fced
SHA512

a08ba89b5c24b5bbc2ed8a7c63756362a9034b00ac75c0ef137b507d9eea1f65459b7ba959d09c61d7f636457f151c0d89769c8fb896ab8d1b0c3237def85b53
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV/:csxD5cwohO+O1sVG0/pZ6iPC8a

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/684-264-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1496	csrsll.exe
496	csrsll.exe
684	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 1496 set thread context of 496	1496	csrsll.exe	35
PID 1496 set thread context of 684	1496	csrsll.exe	36

UPX packed file 22 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2196-92-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2196-87-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/444-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2196-106-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/444-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/444-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/444-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2196-82-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2196-79-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2196-78-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/444-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/444-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a0000000120f9-134.dat	upx
behavioral1/memory/1496-153-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/444-156-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1496-215-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1496-252-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/684-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/444-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/496-261-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/684-264-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe
Token: SeDebugPrivilege	496	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
1496	csrsll.exe
496	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 2196 wrote to memory of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 2196 wrote to memory of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 2196 wrote to memory of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 2196 wrote to memory of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 2196 wrote to memory of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 2196 wrote to memory of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 2196 wrote to memory of 444	2196	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	30
PID 444 wrote to memory of 2120	444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	31
PID 444 wrote to memory of 2120	444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	31
PID 444 wrote to memory of 2120	444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	31
PID 444 wrote to memory of 2120	444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	31
PID 2120 wrote to memory of 2440	2120	cmd.exe	33
PID 2120 wrote to memory of 2440	2120	cmd.exe	33
PID 2120 wrote to memory of 2440	2120	cmd.exe	33
PID 2120 wrote to memory of 2440	2120	cmd.exe	33
PID 444 wrote to memory of 1496	444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	34
PID 444 wrote to memory of 1496	444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	34
PID 444 wrote to memory of 1496	444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	34
PID 444 wrote to memory of 1496	444	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	34
PID 1496 wrote to memory of 496	1496	csrsll.exe	35
PID 1496 wrote to memory of 496	1496	csrsll.exe	35
PID 1496 wrote to memory of 496	1496	csrsll.exe	35
PID 1496 wrote to memory of 496	1496	csrsll.exe	35
PID 1496 wrote to memory of 496	1496	csrsll.exe	35
PID 1496 wrote to memory of 496	1496	csrsll.exe	35
PID 1496 wrote to memory of 496	1496	csrsll.exe	35
PID 1496 wrote to memory of 496	1496	csrsll.exe	35
PID 1496 wrote to memory of 684	1496	csrsll.exe	36
PID 1496 wrote to memory of 684	1496	csrsll.exe	36
PID 1496 wrote to memory of 684	1496	csrsll.exe	36
PID 1496 wrote to memory of 684	1496	csrsll.exe	36
PID 1496 wrote to memory of 684	1496	csrsll.exe	36
PID 1496 wrote to memory of 684	1496	csrsll.exe	36
PID 1496 wrote to memory of 684	1496	csrsll.exe	36
PID 1496 wrote to memory of 684	1496	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
"C:\Users\Admin\AppData\Local\Temp\afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
  "C:\Users\Admin\AppData\Local\Temp\afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:444
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\WBYMY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2120
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2440
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1496
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:496
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\WBYMY.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
326KB

MD5
9420a0bf0fd605df439bc9ac05725af7

SHA1
4a382e52be54c5831348df8b7a35c0e41ccdda8d

SHA256
05f34a0e4dcb886da74fe549bfde837b90cfe2683cecbd175539ab8241e2bfdf

SHA512
ae0a037c049566e378db4f47119051bf6fa05a151c0d3bfaf1afed9c39c1487c75c46f5d79af067f176673e527d1fd6defe049159f6d4e15b0a4c847e82da4fa

Download Submit
memory/444-151-0x00000000034C0000-0x0000000003514000-memory.dmp

Filesize
336KB

Download
memory/444-209-0x00000000034C0000-0x0000000003514000-memory.dmp

Filesize
336KB

Download
memory/444-246-0x00000000034C0000-0x0000000003514000-memory.dmp

Filesize
336KB

Download
memory/444-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-149-0x00000000034C0000-0x0000000003514000-memory.dmp

Filesize
336KB

Download
memory/444-150-0x00000000034C0000-0x0000000003514000-memory.dmp

Filesize
336KB

Download
memory/444-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-148-0x00000000034C0000-0x0000000003514000-memory.dmp

Filesize
336KB

Download
memory/444-244-0x00000000034C0000-0x0000000003514000-memory.dmp

Filesize
336KB

Download
memory/444-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/444-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-156-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/496-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/684-264-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/684-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1496-252-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1496-153-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1496-159-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1496-169-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1496-215-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1496-188-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1496-180-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2196-106-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2196-60-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2196-70-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2196-78-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2196-79-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2196-80-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/2196-82-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2196-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2196-102-0x0000000000600000-0x0000000000654000-memory.dmp

Filesize
336KB

Download
memory/2196-87-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2196-92-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2196-40-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2196-28-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2196-24-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2196-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2196-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2196-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads