modiloader | 3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/07/2024, 04:19

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General

Target
3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe
Size 326KB
Sample240703-exg1vs1dmn
SHA256 3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d
MD5 7048c47b63731a5bd34ae4df1b9f2c60
SHA1 b6bb276cdbf92986afbb8b18ed531ad731b56083
SHA512 c8be2b37b253d0ed7b1245b92a3c80d1216eb0fc3e08e80d93a3f50741ece56f3f95ef35eba7fbcdc369becf18e2332b57083c8fe37250a28c22a5f30141fe68
SSDEEP 3072:h0e2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:h0sxD5cwohO+O1sVG0/pZ6iPC8
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

modiloader 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/1320-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1320-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1320-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1320-58-0x0000000000400000-0x0000000000414000-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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe

Executes dropped EXE 3 IoCs

pid	Process
1404	csrsll.exe
2964	csrsll.exe
1320	csrsll.exe

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2320-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3092-3-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2320-5-0x0000000002A10000-0x0000000002A12000-memory.dmp	upx
behavioral2/memory/3092-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3092-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2320-12-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000a0000000233bf-27.dat	upx
behavioral2/memory/1404-35-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2964-44-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1320-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1320-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1320-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1320-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3092-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1404-54-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1320-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1404-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2964-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1320-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-2539840389-1261165778-1087677076-1000\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 2320 set thread context of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 1404 set thread context of 2964	1404	csrsll.exe	89
PID 1404 set thread context of 1320	1404	csrsll.exe	90

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe
Token: SeDebugPrivilege	2964	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe
3092	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe
1404	csrsll.exe
2964	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 2320 wrote to memory of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 2320 wrote to memory of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 2320 wrote to memory of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 2320 wrote to memory of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 2320 wrote to memory of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 2320 wrote to memory of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 2320 wrote to memory of 3092	2320	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	83
PID 3092 wrote to memory of 2724	3092	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	84
PID 3092 wrote to memory of 2724	3092	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	84
PID 3092 wrote to memory of 2724	3092	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	84
PID 2724 wrote to memory of 4408	2724	cmd.exe	87
PID 2724 wrote to memory of 4408	2724	cmd.exe	87
PID 2724 wrote to memory of 4408	2724	cmd.exe	87
PID 3092 wrote to memory of 1404	3092	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	88
PID 3092 wrote to memory of 1404	3092	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	88
PID 3092 wrote to memory of 1404	3092	3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe	88
PID 1404 wrote to memory of 2964	1404	csrsll.exe	89
PID 1404 wrote to memory of 2964	1404	csrsll.exe	89
PID 1404 wrote to memory of 2964	1404	csrsll.exe	89
PID 1404 wrote to memory of 2964	1404	csrsll.exe	89
PID 1404 wrote to memory of 2964	1404	csrsll.exe	89
PID 1404 wrote to memory of 2964	1404	csrsll.exe	89
PID 1404 wrote to memory of 2964	1404	csrsll.exe	89
PID 1404 wrote to memory of 2964	1404	csrsll.exe	89
PID 1404 wrote to memory of 1320	1404	csrsll.exe	90
PID 1404 wrote to memory of 1320	1404	csrsll.exe	90
PID 1404 wrote to memory of 1320	1404	csrsll.exe	90
PID 1404 wrote to memory of 1320	1404	csrsll.exe	90
PID 1404 wrote to memory of 1320	1404	csrsll.exe	90
PID 1404 wrote to memory of 1320	1404	csrsll.exe	90
PID 1404 wrote to memory of 1320	1404	csrsll.exe	90
PID 1404 wrote to memory of 1320	1404	csrsll.exe	90

C:\Users\Admin\AppData\Local\Temp\3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe
"C:\Users\Admin\AppData\Local\Temp\3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe
  "C:\Users\Admin\AppData\Local\Temp\3914193e4173dc343b9e244cd533ba87e1f37fc5b8bddb680d71775e85e9438d.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XYALQ.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2724
  - - 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
      PID:4408
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1404
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2964
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      PID:1320

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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XYALQ.txt

Path C:\Users\Admin\AppData\Local\Temp\XYALQ.txt
Size 145B
SHA256 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff
MD5 4eb61ec7816c34ec8c125acadc57ec1b
SHA1 b0015cc865c0bb1a027be663027d3829401a31cc
SHA512 f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1
MD5 SHA1 SHA512

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csrsll.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Size 326KB
SHA256 e6ae683787c8763490d33dac8b2d5fa631ff71f13a1a09abedcf4b3014f201a4
MD5 fbe12c685a6fe038b91b54b1295548cb
SHA1 9bb74e82d7eee48809aae4b13721c3b24571554a
SHA512 0124b69917b77423242bc46406843111eeb776606cd88253cbc3764367ffd5bb736ecdfe078c4d0d03ee81e03ebed4cc7e90d67b9b5b044de4bef054076de887
SSDEEP 3072:h0e2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:h0sxD5cwohO+O1sVG0/pZ6iPC8
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1320-53-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1320-48-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1320-58-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1320-45-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1320-49-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1320-50-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1404-54-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/1404-35-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/1404-41-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/2320-7-0x0000000002A30000-0x0000000002A32000-memory.dmp

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memory/2320-12-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/2320-0-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/2320-4-0x0000000002A00000-0x0000000002A02000-memory.dmp

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memory/2320-5-0x0000000002A10000-0x0000000002A12000-memory.dmp

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memory/2320-6-0x0000000002A20000-0x0000000002A22000-memory.dmp

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memory/2964-44-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/2964-57-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3092-9-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3092-10-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3092-55-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3092-3-0x0000000000400000-0x000000000040B000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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