modiloader | 979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2024, 01:26

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General

Target

979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe
Size

90KB
MD5

2e2048a15bb6b94196364031b06dc79b
SHA1

d7df52781bfd3db79933de5632f2a3ee0f27dcb7
SHA256

979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e
SHA512

78e3b41c2e83777f54c13f1aae68a5078a72df905bc0021ba3e0e54dc3797443a71e30dcf0f4af7b6b4e8ed5efa315a2d764707842b4428194eed11e2ec4b052
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDS:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3M

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/4836-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4836-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4836-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4836-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe

Executes dropped EXE 3 IoCs

pid	Process
1440	csrsll.exe
4984	csrsll.exe
4836	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 960 set thread context of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 1440 set thread context of 4984	1440	csrsll.exe	100
PID 1440 set thread context of 4836	1440	csrsll.exe	101

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/960-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/960-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/212-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/960-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/212-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/212-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c8d-29.dat	upx
behavioral2/memory/212-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1440-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1440-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4836-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4836-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1440-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4836-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4836-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4836-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/212-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4984-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4836-62-0x0000000000400000-0x0000000000414000-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	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	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe
Token: SeDebugPrivilege	4984	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe
212	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe
1440	csrsll.exe
4984	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 960 wrote to memory of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 960 wrote to memory of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 960 wrote to memory of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 960 wrote to memory of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 960 wrote to memory of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 960 wrote to memory of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 960 wrote to memory of 212	960	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	88
PID 212 wrote to memory of 400	212	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	89
PID 212 wrote to memory of 400	212	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	89
PID 212 wrote to memory of 400	212	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	89
PID 400 wrote to memory of 3172	400	cmd.exe	93
PID 400 wrote to memory of 3172	400	cmd.exe	93
PID 400 wrote to memory of 3172	400	cmd.exe	93
PID 212 wrote to memory of 1440	212	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	94
PID 212 wrote to memory of 1440	212	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	94
PID 212 wrote to memory of 1440	212	979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe	94
PID 1440 wrote to memory of 4984	1440	csrsll.exe	100
PID 1440 wrote to memory of 4984	1440	csrsll.exe	100
PID 1440 wrote to memory of 4984	1440	csrsll.exe	100
PID 1440 wrote to memory of 4984	1440	csrsll.exe	100
PID 1440 wrote to memory of 4984	1440	csrsll.exe	100
PID 1440 wrote to memory of 4984	1440	csrsll.exe	100
PID 1440 wrote to memory of 4984	1440	csrsll.exe	100
PID 1440 wrote to memory of 4984	1440	csrsll.exe	100
PID 1440 wrote to memory of 4836	1440	csrsll.exe	101
PID 1440 wrote to memory of 4836	1440	csrsll.exe	101
PID 1440 wrote to memory of 4836	1440	csrsll.exe	101
PID 1440 wrote to memory of 4836	1440	csrsll.exe	101
PID 1440 wrote to memory of 4836	1440	csrsll.exe	101
PID 1440 wrote to memory of 4836	1440	csrsll.exe	101
PID 1440 wrote to memory of 4836	1440	csrsll.exe	101
PID 1440 wrote to memory of 4836	1440	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe
"C:\Users\Admin\AppData\Local\Temp\979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:960
- C:\Users\Admin\AppData\Local\Temp\979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe
  "C:\Users\Admin\AppData\Local\Temp\979e60204b30e457f02a4702d237ef6367f15c92ca0050a1725afef26ea36b4e.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:212
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OLLWT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:400
  - - 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:3172
- - 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:1440
  - - 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:4984
  - - 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:4836

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\OLLWT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
21cd6ca374de114ebc7c27ac7d204127

SHA1
a9ac9d81f6218ac5dbeca1e4f20339a13d4fcb9d

SHA256
9f0f837d984a79bb697cca66e196706b405171ba71b1e03dccf618600998201f

SHA512
fe86647402ac23d354c0413db249ac969343154aac8727b80f9172bffe176c109f60ad6d262328fa49f6f9a3b35f1af2c30600c93fc899be388e9e96a10414d2

Download Submit
memory/212-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/212-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/960-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/960-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/960-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/960-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/960-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/960-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/1440-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1440-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1440-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4836-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4836-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4836-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4836-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4836-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4836-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4984-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads