modiloader | b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2024, 22:21

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General

Target

b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
Size

326KB
MD5

13c43ea9907a0ba765f9a953f2c7ff70
SHA1

7090c38c2437d2c2cdd406694415c9f67f724b27
SHA256

b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498
SHA512

357e37575a44918c7b2e176b0c503a7bf1bf195f737d6dd67992e9fee60b39dec8b11660d5071cfd5d59b23db9893b922a7a25f74013b02ab3aaf5638fded241
SSDEEP

3072:h0e2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:h0sxD5cwohO+O1sVG0/pZ6iPC8

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1684-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1684-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1684-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1684-61-0x0000000000400000-0x0000000000414000-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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe

Executes dropped EXE 3 IoCs

pid	Process
4752	csrsll.exe
1324	csrsll.exe
1684	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-1-5-21-523280732-2327480845-3730041215-1000\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 4112 set thread context of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4752 set thread context of 1324	4752	csrsll.exe	95
PID 4752 set thread context of 1684	4752	csrsll.exe	96

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4112-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4112-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4472-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4472-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4112-11-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4472-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4472-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00080000000234e2-29.dat	upx
behavioral2/memory/4752-36-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4472-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4752-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4752-42-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1684-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1684-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1684-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1684-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1684-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4752-57-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4472-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1324-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1684-61-0x0000000000400000-0x0000000000414000-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	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
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	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe
Token: SeDebugPrivilege	1324	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
4472	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
4752	csrsll.exe
1324	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4112 wrote to memory of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4112 wrote to memory of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4112 wrote to memory of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4112 wrote to memory of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4112 wrote to memory of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4112 wrote to memory of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4112 wrote to memory of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4112 wrote to memory of 4472	4112	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	82
PID 4472 wrote to memory of 5088	4472	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	87
PID 4472 wrote to memory of 5088	4472	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	87
PID 4472 wrote to memory of 5088	4472	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	87
PID 5088 wrote to memory of 1428	5088	cmd.exe	90
PID 5088 wrote to memory of 1428	5088	cmd.exe	90
PID 5088 wrote to memory of 1428	5088	cmd.exe	90
PID 4472 wrote to memory of 4752	4472	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	91
PID 4472 wrote to memory of 4752	4472	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	91
PID 4472 wrote to memory of 4752	4472	b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe	91
PID 4752 wrote to memory of 1324	4752	csrsll.exe	95
PID 4752 wrote to memory of 1324	4752	csrsll.exe	95
PID 4752 wrote to memory of 1324	4752	csrsll.exe	95
PID 4752 wrote to memory of 1324	4752	csrsll.exe	95
PID 4752 wrote to memory of 1324	4752	csrsll.exe	95
PID 4752 wrote to memory of 1324	4752	csrsll.exe	95
PID 4752 wrote to memory of 1324	4752	csrsll.exe	95
PID 4752 wrote to memory of 1324	4752	csrsll.exe	95
PID 4752 wrote to memory of 1684	4752	csrsll.exe	96
PID 4752 wrote to memory of 1684	4752	csrsll.exe	96
PID 4752 wrote to memory of 1684	4752	csrsll.exe	96
PID 4752 wrote to memory of 1684	4752	csrsll.exe	96
PID 4752 wrote to memory of 1684	4752	csrsll.exe	96
PID 4752 wrote to memory of 1684	4752	csrsll.exe	96
PID 4752 wrote to memory of 1684	4752	csrsll.exe	96
PID 4752 wrote to memory of 1684	4752	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
"C:\Users\Admin\AppData\Local\Temp\b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4112
- C:\Users\Admin\AppData\Local\Temp\b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe
  "C:\Users\Admin\AppData\Local\Temp\b845e4783f7a3376ef310545b9b7bea1ea0bf4bee99f70ad3304ed21b8c35498N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4472
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HJVWE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5088
  - - 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:1428
- - 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:4752
  - - 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:1324
  - - 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:1684

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\HJVWE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
4bba01e02c49a39a50bd96a77e7be21d

SHA1
f485fc8776108e6a13d3a2b4833eb54d3eea4531

SHA256
0554f0a8b53426061cab014c5dec074496c819828c86c721bcc8a15a182b93f4

SHA512
c96e79f129c7a8bc948d74e809139f770cf9fdff856147dbb6aa0236032ad4be9167c6b9e4e3b9bcda790aa66253d5a3a2a2d8b9a767da28512c1d6c6fe1e782

Download Submit
memory/1324-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1684-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1684-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1684-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1684-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1684-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1684-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4112-6-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download
memory/4112-3-0x00000000022B0000-0x00000000022B2000-memory.dmp

Filesize
8KB

Download
memory/4112-11-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4112-7-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/4112-4-0x00000000022C0000-0x00000000022C2000-memory.dmp

Filesize
8KB

Download
memory/4112-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4112-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4472-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4472-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4472-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4472-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4472-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4472-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4752-42-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4752-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4752-36-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4752-57-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads