modiloader | a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2025 18:02

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General

Target

a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe
Size

90KB
MD5

d5dcb3d5cdb8db2aa640a58df0a84cb0
SHA1

83bdb4b04f073d75f95cf5edbfe71b8d91fced70
SHA256

a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07
SHA512

deb976955cf0fe403e5e6d52d5fe2b289ad167864a2ea929b48cfeffeb7bf1c3aa4d139c05a0484f18524bc7ddf239e345914f4e1b716afac9652d8eacea198c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/4576-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4576-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4576-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4576-64-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe

Executes dropped EXE 3 IoCs

pid	Process
3932	csrsll.exe
2036	csrsll.exe
4576	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-1-5-21-2437139445-1151884604-3026847218-1000\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 1288 set thread context of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 3932 set thread context of 2036	3932	csrsll.exe	95
PID 3932 set thread context of 4576	3932	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1288-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1288-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4992-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4992-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1288-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4992-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c86-29.dat	upx
behavioral2/memory/3932-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4992-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3932-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3932-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4576-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4576-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4576-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4576-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3932-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4576-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4992-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2036-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4576-64-0x0000000000400000-0x0000000000414000-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	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.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	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe
Token: SeDebugPrivilege	2036	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe
4992	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe
3932	csrsll.exe
2036	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 1288 wrote to memory of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 1288 wrote to memory of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 1288 wrote to memory of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 1288 wrote to memory of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 1288 wrote to memory of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 1288 wrote to memory of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 1288 wrote to memory of 4992	1288	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	83
PID 4992 wrote to memory of 3236	4992	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	84
PID 4992 wrote to memory of 3236	4992	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	84
PID 4992 wrote to memory of 3236	4992	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	84
PID 3236 wrote to memory of 4092	3236	cmd.exe	88
PID 3236 wrote to memory of 4092	3236	cmd.exe	88
PID 3236 wrote to memory of 4092	3236	cmd.exe	88
PID 4992 wrote to memory of 3932	4992	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	89
PID 4992 wrote to memory of 3932	4992	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	89
PID 4992 wrote to memory of 3932	4992	a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe	89
PID 3932 wrote to memory of 2036	3932	csrsll.exe	95
PID 3932 wrote to memory of 2036	3932	csrsll.exe	95
PID 3932 wrote to memory of 2036	3932	csrsll.exe	95
PID 3932 wrote to memory of 2036	3932	csrsll.exe	95
PID 3932 wrote to memory of 2036	3932	csrsll.exe	95
PID 3932 wrote to memory of 2036	3932	csrsll.exe	95
PID 3932 wrote to memory of 2036	3932	csrsll.exe	95
PID 3932 wrote to memory of 2036	3932	csrsll.exe	95
PID 3932 wrote to memory of 4576	3932	csrsll.exe	96
PID 3932 wrote to memory of 4576	3932	csrsll.exe	96
PID 3932 wrote to memory of 4576	3932	csrsll.exe	96
PID 3932 wrote to memory of 4576	3932	csrsll.exe	96
PID 3932 wrote to memory of 4576	3932	csrsll.exe	96
PID 3932 wrote to memory of 4576	3932	csrsll.exe	96
PID 3932 wrote to memory of 4576	3932	csrsll.exe	96
PID 3932 wrote to memory of 4576	3932	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe
"C:\Users\Admin\AppData\Local\Temp\a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Users\Admin\AppData\Local\Temp\a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe
  "C:\Users\Admin\AppData\Local\Temp\a93b4f461c294c09451bf37c79194cad650944de3573ce65cc838ff39c693a07N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4992
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FJELA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3236
  - - 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:4092
- - 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:3932
  - - 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:2036
  - - 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:4576

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\FJELA.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c75cd24922f3f166bcd8dad62c8644c8

SHA1
4c6651b6072a4289e984d126d0862dd24658c8dc

SHA256
7b771e37df087249ccfc9af7324352834b13e2a694e459aee4dfa6d53b798c80

SHA512
c1fa32500d1366d78d790e4cdda932eff94e763053ad65c4181254813378c84cf2a593e42d8500ec2d3120f3d637ae2ef43bb0ffb7f3348cb32a913bef1f8382

Download Submit
memory/1288-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1288-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/1288-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/1288-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2036-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3932-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3932-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3932-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3932-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4576-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4576-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4576-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4576-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4576-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4576-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4992-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4992-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4992-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4992-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4992-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads