modiloader | afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fced

Analysis

max time kernel
118s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 4 IoCs

resource	yara_rule
behavioral2/memory/2916-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2916-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2916-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2916-60-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe

Executes dropped EXE 3 IoCs

pid	Process
4260	csrsll.exe
3532	csrsll.exe
2916	csrsll.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-1-5-21-4050598569-1597076380-177084960-1000\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 4436 set thread context of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 4260 set thread context of 3532	4260	csrsll.exe	92
PID 4260 set thread context of 2916	4260	csrsll.exe	93

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4436-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4436-4-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1352-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1352-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1352-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4436-13-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000b000000023b57-28.dat	upx
behavioral2/memory/1352-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4260-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4260-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2916-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2916-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2916-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2916-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4260-56-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1352-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2916-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3532-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2916-60-0x0000000000400000-0x0000000000414000-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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe
Token: SeDebugPrivilege	3532	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
1352	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
4260	csrsll.exe
3532	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 4436 wrote to memory of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 4436 wrote to memory of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 4436 wrote to memory of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 4436 wrote to memory of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 4436 wrote to memory of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 4436 wrote to memory of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 4436 wrote to memory of 1352	4436	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	82
PID 1352 wrote to memory of 4816	1352	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	83
PID 1352 wrote to memory of 4816	1352	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	83
PID 1352 wrote to memory of 4816	1352	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	83
PID 4816 wrote to memory of 3352	4816	cmd.exe	86
PID 4816 wrote to memory of 3352	4816	cmd.exe	86
PID 4816 wrote to memory of 3352	4816	cmd.exe	86
PID 1352 wrote to memory of 4260	1352	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	87
PID 1352 wrote to memory of 4260	1352	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	87
PID 1352 wrote to memory of 4260	1352	afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe	87
PID 4260 wrote to memory of 3532	4260	csrsll.exe	92
PID 4260 wrote to memory of 3532	4260	csrsll.exe	92
PID 4260 wrote to memory of 3532	4260	csrsll.exe	92
PID 4260 wrote to memory of 3532	4260	csrsll.exe	92
PID 4260 wrote to memory of 3532	4260	csrsll.exe	92
PID 4260 wrote to memory of 3532	4260	csrsll.exe	92
PID 4260 wrote to memory of 3532	4260	csrsll.exe	92
PID 4260 wrote to memory of 3532	4260	csrsll.exe	92
PID 4260 wrote to memory of 2916	4260	csrsll.exe	93
PID 4260 wrote to memory of 2916	4260	csrsll.exe	93
PID 4260 wrote to memory of 2916	4260	csrsll.exe	93
PID 4260 wrote to memory of 2916	4260	csrsll.exe	93
PID 4260 wrote to memory of 2916	4260	csrsll.exe	93
PID 4260 wrote to memory of 2916	4260	csrsll.exe	93
PID 4260 wrote to memory of 2916	4260	csrsll.exe	93
PID 4260 wrote to memory of 2916	4260	csrsll.exe	93

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:4436
- C:\Users\Admin\AppData\Local\Temp\afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe
  "C:\Users\Admin\AppData\Local\Temp\afb45674a8a2158459211e9980686f8329dd3b6b5965e1aceac1fcc07157fcedN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1352
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OCFBQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4816
  - - 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:3352
- - 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:4260
  - - 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:3532
  - - 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:2916

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

Query Registry

T1012

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\OCFBQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
9549af18a9ca7693c0f5ab979ca70c8e

SHA1
cfead72a9188e97f3c207a4e94f609ef3fd88e24

SHA256
8ab0a2bdaa041c60b0681d209d5df3e95b8dd6135456efe8c89b763a1e97368a

SHA512
a4bb54307a5104752df94ba89a9ec266a6c396421a4369317e1f5455363aa5ac9f758f117e28ddb87ddddbc05d9d78b9591945be07f27e8d1d2511398db6cdc8

Download Submit
memory/1352-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1352-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2916-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2916-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2916-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2916-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2916-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2916-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3532-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4260-56-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4260-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4260-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4436-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4436-4-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4436-5-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4436-13-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4436-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4436-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads