modiloader | a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 04:36

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General

Target

a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe
Size

90KB
MD5

dcf0add627a39088525bef819f0c72d0
SHA1

28b2b5a07b4a356556bc068835d45ea874098851
SHA256

a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46
SHA512

1cf21b7fe21dbcaadf17e5fc3c7e5657d9887c606e8e4b1c4919500b0584a59b48bc23dbdcac01498299c82ddc4f4503f011ac636bb6b3cb60e7d16b783e2092
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1596-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1596-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1596-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1596-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe

Executes dropped EXE 3 IoCs

pid	Process
4752	csrsll.exe
3740	csrsll.exe
1596	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-1-5-21-2412658365-3084825385-3340777666-1000\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 4728 set thread context of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 4752 set thread context of 3740	4752	csrsll.exe	95
PID 4752 set thread context of 1596	4752	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4728-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4728-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2876-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2876-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4728-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2876-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023400-29.dat	upx
behavioral2/memory/4752-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2876-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4752-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4752-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1596-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1596-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1596-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1596-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4752-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1596-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2876-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3740-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1596-63-0x0000000000400000-0x0000000000414000-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	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	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe
Token: SeDebugPrivilege	3740	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe
2876	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe
4752	csrsll.exe
3740	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 4728 wrote to memory of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 4728 wrote to memory of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 4728 wrote to memory of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 4728 wrote to memory of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 4728 wrote to memory of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 4728 wrote to memory of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 4728 wrote to memory of 2876	4728	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	86
PID 2876 wrote to memory of 748	2876	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	87
PID 2876 wrote to memory of 748	2876	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	87
PID 2876 wrote to memory of 748	2876	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	87
PID 748 wrote to memory of 1424	748	cmd.exe	90
PID 748 wrote to memory of 1424	748	cmd.exe	90
PID 748 wrote to memory of 1424	748	cmd.exe	90
PID 2876 wrote to memory of 4752	2876	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	91
PID 2876 wrote to memory of 4752	2876	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	91
PID 2876 wrote to memory of 4752	2876	a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe	91
PID 4752 wrote to memory of 3740	4752	csrsll.exe	95
PID 4752 wrote to memory of 3740	4752	csrsll.exe	95
PID 4752 wrote to memory of 3740	4752	csrsll.exe	95
PID 4752 wrote to memory of 3740	4752	csrsll.exe	95
PID 4752 wrote to memory of 3740	4752	csrsll.exe	95
PID 4752 wrote to memory of 3740	4752	csrsll.exe	95
PID 4752 wrote to memory of 3740	4752	csrsll.exe	95
PID 4752 wrote to memory of 3740	4752	csrsll.exe	95
PID 4752 wrote to memory of 1596	4752	csrsll.exe	96
PID 4752 wrote to memory of 1596	4752	csrsll.exe	96
PID 4752 wrote to memory of 1596	4752	csrsll.exe	96
PID 4752 wrote to memory of 1596	4752	csrsll.exe	96
PID 4752 wrote to memory of 1596	4752	csrsll.exe	96
PID 4752 wrote to memory of 1596	4752	csrsll.exe	96
PID 4752 wrote to memory of 1596	4752	csrsll.exe	96
PID 4752 wrote to memory of 1596	4752	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe
"C:\Users\Admin\AppData\Local\Temp\a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Users\Admin\AppData\Local\Temp\a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe
  "C:\Users\Admin\AppData\Local\Temp\a2a15f24acf4092b3ce912f1947c9048f4fb604a7ff6e75829fe751e45e86e46N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JKHQC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:748
  - - 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:1424
- - 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:3740
  - - 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:1596

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\JKHQC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
95e866ee2bea77166ec8538c95cfcc88

SHA1
b67eb2f46b58c9067e8fadc7e7b3ed26e127893a

SHA256
123ee43a486f09b530413ea2198e0e96c1610664a0626fc0520196e337ba2dfc

SHA512
22c813daced96439d39e0443501977b42b79d91cb495d81cb7925fd9c3c0b8f692b734c5ff018255b9ed7629fe461bcf5810df49e13fb0d9a3ca4da37a459eb8

Download Submit
memory/1596-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2876-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2876-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3740-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4728-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/4728-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4728-5-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/4728-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4728-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4728-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4752-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4752-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4752-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4752-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads