modiloader | 8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112c

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
22-12-2024 14:27

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General

Target

8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe
Size

90KB
MD5

3ed94ddc5ab6bfd3ed226e51a2981cf0
SHA1

d58278e3a2efc84bf35d72c360ac630c8c544c72
SHA256

8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112c
SHA512

b4b811f7859fe262fee31dc4b5dc976845e7a42e41c5cff91adfd2f89e90733d87a740fccb9844e713e010665f7a80ee9e8147d30fff2a6c1eb5b79a6287c3b5
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDq:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3g

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/3016-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3016-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3016-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3016-61-0x0000000000400000-0x0000000000414000-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	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe

Executes dropped EXE 3 IoCs

pid	Process
2812	csrsll.exe
5104	csrsll.exe
3016	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 4152 set thread context of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 2812 set thread context of 5104	2812	csrsll.exe	101
PID 2812 set thread context of 3016	2812	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4152-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4152-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2140-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2140-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2140-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4152-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b72-29.dat	upx
behavioral2/memory/2812-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2812-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2140-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3016-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3016-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2812-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3016-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3016-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3016-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2140-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5104-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3016-61-0x0000000000400000-0x0000000000414000-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	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe
Token: SeDebugPrivilege	5104	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe
2140	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe
2812	csrsll.exe
5104	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 4152 wrote to memory of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 4152 wrote to memory of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 4152 wrote to memory of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 4152 wrote to memory of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 4152 wrote to memory of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 4152 wrote to memory of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 4152 wrote to memory of 2140	4152	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	83
PID 2140 wrote to memory of 3080	2140	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	86
PID 2140 wrote to memory of 3080	2140	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	86
PID 2140 wrote to memory of 3080	2140	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	86
PID 3080 wrote to memory of 1788	3080	cmd.exe	90
PID 3080 wrote to memory of 1788	3080	cmd.exe	90
PID 3080 wrote to memory of 1788	3080	cmd.exe	90
PID 2140 wrote to memory of 2812	2140	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	91
PID 2140 wrote to memory of 2812	2140	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	91
PID 2140 wrote to memory of 2812	2140	8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe	91
PID 2812 wrote to memory of 5104	2812	csrsll.exe	101
PID 2812 wrote to memory of 5104	2812	csrsll.exe	101
PID 2812 wrote to memory of 5104	2812	csrsll.exe	101
PID 2812 wrote to memory of 5104	2812	csrsll.exe	101
PID 2812 wrote to memory of 5104	2812	csrsll.exe	101
PID 2812 wrote to memory of 5104	2812	csrsll.exe	101
PID 2812 wrote to memory of 5104	2812	csrsll.exe	101
PID 2812 wrote to memory of 5104	2812	csrsll.exe	101
PID 2812 wrote to memory of 3016	2812	csrsll.exe	102
PID 2812 wrote to memory of 3016	2812	csrsll.exe	102
PID 2812 wrote to memory of 3016	2812	csrsll.exe	102
PID 2812 wrote to memory of 3016	2812	csrsll.exe	102
PID 2812 wrote to memory of 3016	2812	csrsll.exe	102
PID 2812 wrote to memory of 3016	2812	csrsll.exe	102
PID 2812 wrote to memory of 3016	2812	csrsll.exe	102
PID 2812 wrote to memory of 3016	2812	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe
"C:\Users\Admin\AppData\Local\Temp\8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Users\Admin\AppData\Local\Temp\8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe
  "C:\Users\Admin\AppData\Local\Temp\8588b9b413de2a444606a91d1e70d8248771a7f4d72de6b9361f8fe377a0112cN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2140
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KCWAX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3080
  - - 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:1788
- - 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:2812
  - - 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:5104
  - - 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:3016

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\KCWAX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
97207bbedcb486a30ad3fbc79ffe31a8

SHA1
c3c4bbb41de867b7f1f864a3485046e6e3469d12

SHA256
9bfc759550d8886fcfd958dd50991330d1f8dd4730711c1b13c8efd1df16ba05

SHA512
6c052e205f7a95eb981bb91a696da06980e7a714b2c80a55cbcc2b447fdb8f792898a4498d95fd182107794891d75239104e34cc739bdad668ea4e59d05b8d6e

Download Submit
memory/2140-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2140-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2140-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2140-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2140-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2812-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2812-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2812-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3016-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3016-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3016-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3016-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3016-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3016-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4152-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-4-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/4152-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-7-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/4152-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/4152-3-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4152-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5104-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads