modiloader | 172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2024, 16:37

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General

Target

172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe
Size

90KB
MD5

319800e54beb8fd3049e135bd6cac983
SHA1

5cad7bac77fd9aa395f22047537dd4bfb75af396
SHA256

172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901
SHA512

425a3ba925973573ead5c8e6abf92f355d3c87a6376842bdc744db2160fdeb5f40e20fdc3b8ab9aaa625bd27594bbdb3e267b0a28da767b075b6847de55a50c9
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDr:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3F

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/1348-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1348-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1348-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1348-60-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe

Executes dropped EXE 3 IoCs

pid	Process
4492	csrsll.exe
316	csrsll.exe
1348	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-1-5-21-1045960512-3948844814-3059691613-1000\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 1468 set thread context of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 4492 set thread context of 316	4492	csrsll.exe	97
PID 4492 set thread context of 1348	4492	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1468-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1468-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1436-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1436-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1468-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1436-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c92-28.dat	upx
behavioral2/memory/1436-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4492-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4492-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1348-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1348-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4492-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1348-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1348-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1348-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1436-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/316-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1348-60-0x0000000000400000-0x0000000000414000-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	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe
Token: SeDebugPrivilege	316	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe
1436	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe
4492	csrsll.exe
316	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1468 wrote to memory of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 1468 wrote to memory of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 1468 wrote to memory of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 1468 wrote to memory of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 1468 wrote to memory of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 1468 wrote to memory of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 1468 wrote to memory of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 1468 wrote to memory of 1436	1468	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	83
PID 1436 wrote to memory of 2520	1436	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	84
PID 1436 wrote to memory of 2520	1436	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	84
PID 1436 wrote to memory of 2520	1436	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	84
PID 2520 wrote to memory of 556	2520	cmd.exe	88
PID 2520 wrote to memory of 556	2520	cmd.exe	88
PID 2520 wrote to memory of 556	2520	cmd.exe	88
PID 1436 wrote to memory of 4492	1436	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	89
PID 1436 wrote to memory of 4492	1436	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	89
PID 1436 wrote to memory of 4492	1436	172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe	89
PID 4492 wrote to memory of 316	4492	csrsll.exe	97
PID 4492 wrote to memory of 316	4492	csrsll.exe	97
PID 4492 wrote to memory of 316	4492	csrsll.exe	97
PID 4492 wrote to memory of 316	4492	csrsll.exe	97
PID 4492 wrote to memory of 316	4492	csrsll.exe	97
PID 4492 wrote to memory of 316	4492	csrsll.exe	97
PID 4492 wrote to memory of 316	4492	csrsll.exe	97
PID 4492 wrote to memory of 316	4492	csrsll.exe	97
PID 4492 wrote to memory of 1348	4492	csrsll.exe	98
PID 4492 wrote to memory of 1348	4492	csrsll.exe	98
PID 4492 wrote to memory of 1348	4492	csrsll.exe	98
PID 4492 wrote to memory of 1348	4492	csrsll.exe	98
PID 4492 wrote to memory of 1348	4492	csrsll.exe	98
PID 4492 wrote to memory of 1348	4492	csrsll.exe	98
PID 4492 wrote to memory of 1348	4492	csrsll.exe	98
PID 4492 wrote to memory of 1348	4492	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe
"C:\Users\Admin\AppData\Local\Temp\172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Users\Admin\AppData\Local\Temp\172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe
  "C:\Users\Admin\AppData\Local\Temp\172bacb6543e0004410ae0f43a52623b4ed5350f6262674372d9a3c45253a901.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1436
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EKPAC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2520
  - - 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:556
- - 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:4492
  - - 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:316
  - - 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:1348

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\EKPAC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8423713f48015e97e9db81c19d046076

SHA1
2b1be51d0f0683cefb9fedcfbeb5b7bd0cc5e096

SHA256
6fb42f30bd67d9890889ce51b2e3d9fa4a05245ad6dec7850050d161ba028b2d

SHA512
0a3e88c4f1e5dbc429b4c73418e2656396f11630c1d352e28a852f8b18be953a3c3aecdaba0801c9ae4c6a2af8d1a73ec28b7a791ae96b67d801b74f04f2a14a

Download Submit
memory/316-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1348-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1348-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1348-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1348-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1348-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1348-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1436-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1436-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1436-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1436-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1436-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1468-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/1468-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1468-3-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/1468-4-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/1468-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1468-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4492-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4492-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4492-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads