modiloader | 35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5add

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 23:58

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General

Target

35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe
Size

90KB
MD5

cf24d2a8bfa9d9dfbf59735feeea6fa0
SHA1

29f8c8a3674a565f2949e59ae7376c6c84012c6c
SHA256

35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5add
SHA512

383e8e5ccc1c209808a338643a068437d2f280c67f49a0645c7b107fdabc8b1ea85f7fab6c6d8c24f9751451d60b7a0d48cd1ed073c1f3a6b8fe3f89dde967c2
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDo:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3u

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/1056-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe

Executes dropped EXE 3 IoCs

pid	Process
5080	csrsll.exe
696	csrsll.exe
1056	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-1-5-21-2045521122-590294423-3465680274-1000\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 4204 set thread context of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 5080 set thread context of 696	5080	csrsll.exe	101
PID 5080 set thread context of 1056	5080	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4204-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4204-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1392-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1392-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1392-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4204-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b7c-30.dat	upx
behavioral2/memory/1392-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5080-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5080-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1056-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1056-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1056-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1056-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5080-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1056-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1392-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/696-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1056-63-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe
Token: SeDebugPrivilege	696	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe
1392	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe
5080	csrsll.exe
696	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 4204 wrote to memory of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 4204 wrote to memory of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 4204 wrote to memory of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 4204 wrote to memory of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 4204 wrote to memory of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 4204 wrote to memory of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 4204 wrote to memory of 1392	4204	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	89
PID 1392 wrote to memory of 2004	1392	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	90
PID 1392 wrote to memory of 2004	1392	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	90
PID 1392 wrote to memory of 2004	1392	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	90
PID 2004 wrote to memory of 4736	2004	cmd.exe	94
PID 2004 wrote to memory of 4736	2004	cmd.exe	94
PID 2004 wrote to memory of 4736	2004	cmd.exe	94
PID 1392 wrote to memory of 5080	1392	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	95
PID 1392 wrote to memory of 5080	1392	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	95
PID 1392 wrote to memory of 5080	1392	35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe	95
PID 5080 wrote to memory of 696	5080	csrsll.exe	101
PID 5080 wrote to memory of 696	5080	csrsll.exe	101
PID 5080 wrote to memory of 696	5080	csrsll.exe	101
PID 5080 wrote to memory of 696	5080	csrsll.exe	101
PID 5080 wrote to memory of 696	5080	csrsll.exe	101
PID 5080 wrote to memory of 696	5080	csrsll.exe	101
PID 5080 wrote to memory of 696	5080	csrsll.exe	101
PID 5080 wrote to memory of 696	5080	csrsll.exe	101
PID 5080 wrote to memory of 1056	5080	csrsll.exe	102
PID 5080 wrote to memory of 1056	5080	csrsll.exe	102
PID 5080 wrote to memory of 1056	5080	csrsll.exe	102
PID 5080 wrote to memory of 1056	5080	csrsll.exe	102
PID 5080 wrote to memory of 1056	5080	csrsll.exe	102
PID 5080 wrote to memory of 1056	5080	csrsll.exe	102
PID 5080 wrote to memory of 1056	5080	csrsll.exe	102
PID 5080 wrote to memory of 1056	5080	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe
"C:\Users\Admin\AppData\Local\Temp\35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Users\Admin\AppData\Local\Temp\35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe
  "C:\Users\Admin\AppData\Local\Temp\35f7e810c336f6259413ed4e80fa47f35e174ce085f70493d282b04c61ce5addN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1392
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TRPTH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2004
  - - 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:4736
- - 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:5080
  - - 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:696
  - - 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:1056

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\TRPTH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8f3af9d09b8547b67ad5bb240f978e24

SHA1
69c2b118808eed0ebd436f4f32e20bc4d5a147b8

SHA256
6a7c3f04cfcdb1c874d518fa48612a4e97bc18b70be0ee1c4aee15b934e55170

SHA512
5ed819e82615725f3c2fff82e9f8ebf95bcf56b22b012aec50eb781db1d575ad3bc532540742343e77ad16090fb9d707aca714d74a6fdce514854a246f5be660

Download Submit
memory/696-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1056-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1056-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1056-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1056-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1056-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1056-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1392-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1392-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1392-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1392-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1392-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1392-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4204-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4204-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4204-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4204-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4204-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4204-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/5080-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5080-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5080-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads