modiloader | a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3

Analysis

max time kernel
118s
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
07/12/2024, 03:05

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General

Target

a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe
Size

90KB
MD5

6bb1f0ff4d3e82badb9a80e66b5b6c58
SHA1

027cfacaa58631f9910d81c581421d49f79b75e7
SHA256

a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3
SHA512

8b29905011ac551aad7d30fa1ccbdcd9c7d50e8fdf5a22c7e58d498fcff27f53d4ce2c1e9ab4fd0b512bf29ba4543de3bc6dabbd643ff0c773084a5301a07588
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD1:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3X

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/4708-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4708-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4708-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4708-62-0x0000000000400000-0x0000000000414000-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	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe

Executes dropped EXE 3 IoCs

pid	Process
440	csrsll.exe
64	csrsll.exe
4708	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 3472 set thread context of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 440 set thread context of 64	440	csrsll.exe	100
PID 440 set thread context of 4708	440	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3472-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3472-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4808-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4808-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4808-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3472-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b89-30.dat	upx
behavioral2/memory/440-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4808-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/440-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4708-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/440-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4708-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4808-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/64-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4708-62-0x0000000000400000-0x0000000000414000-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	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.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	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe
Token: SeDebugPrivilege	64	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe
4808	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe
440	csrsll.exe
64	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 3472 wrote to memory of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 3472 wrote to memory of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 3472 wrote to memory of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 3472 wrote to memory of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 3472 wrote to memory of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 3472 wrote to memory of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 3472 wrote to memory of 4808	3472	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	83
PID 4808 wrote to memory of 1284	4808	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	88
PID 4808 wrote to memory of 1284	4808	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	88
PID 4808 wrote to memory of 1284	4808	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	88
PID 1284 wrote to memory of 1864	1284	cmd.exe	92
PID 1284 wrote to memory of 1864	1284	cmd.exe	92
PID 1284 wrote to memory of 1864	1284	cmd.exe	92
PID 4808 wrote to memory of 440	4808	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	93
PID 4808 wrote to memory of 440	4808	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	93
PID 4808 wrote to memory of 440	4808	a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe	93
PID 440 wrote to memory of 64	440	csrsll.exe	100
PID 440 wrote to memory of 64	440	csrsll.exe	100
PID 440 wrote to memory of 64	440	csrsll.exe	100
PID 440 wrote to memory of 64	440	csrsll.exe	100
PID 440 wrote to memory of 64	440	csrsll.exe	100
PID 440 wrote to memory of 64	440	csrsll.exe	100
PID 440 wrote to memory of 64	440	csrsll.exe	100
PID 440 wrote to memory of 64	440	csrsll.exe	100
PID 440 wrote to memory of 4708	440	csrsll.exe	101
PID 440 wrote to memory of 4708	440	csrsll.exe	101
PID 440 wrote to memory of 4708	440	csrsll.exe	101
PID 440 wrote to memory of 4708	440	csrsll.exe	101
PID 440 wrote to memory of 4708	440	csrsll.exe	101
PID 440 wrote to memory of 4708	440	csrsll.exe	101
PID 440 wrote to memory of 4708	440	csrsll.exe	101
PID 440 wrote to memory of 4708	440	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe
"C:\Users\Admin\AppData\Local\Temp\a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Users\Admin\AppData\Local\Temp\a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe
  "C:\Users\Admin\AppData\Local\Temp\a01bebd0202ef7376cb3debbcec566c90edc89fdfe419ca0bf258bb7ba69f1f3.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4808
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EQURF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1284
  - - 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:1864
- - 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:440
  - - 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:64
  - - 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:4708

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\EQURF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b1cdb03d5bc9c4c15db26311935844c7

SHA1
3ef26ee13b6f24f3702120d4ab0977ae57f29221

SHA256
9d637a9ea175557b343ee9b391849713bb993ed73018419de53a3c4ccc593230

SHA512
8c9d34d2251822bc566e7d44a7a07a90729194319aa8d1a9eaebc17062403abc29bbf575064ed0ea89824e77065adce9641a61eeaeba1f414d919d772ec23013

Download Submit
memory/64-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/440-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/440-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/440-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3472-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/3472-4-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/3472-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3472-6-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/3472-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3472-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4708-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4808-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4808-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4808-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4808-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4808-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads