modiloader | 2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 05:36

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General

Target

2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe
Size

90KB
MD5

e199afa639910afe314b060f72d08100
SHA1

46f63eb8d799580b61918cf4e49f9331c4d6b122
SHA256

2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48
SHA512

42e7672b34de33fd0cb2c4fa3a7efad7f9f7abdf2fddf0022997a2adb8f9e23c91ac7744040ca89b0221e15b05ff9ad31355e08fd4564c8f79b7fc95a2b70e62
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDU:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3W

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/4300-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4300-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4300-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4300-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe

Executes dropped EXE 3 IoCs

pid	Process
3924	csrsll.exe
412	csrsll.exe
4300	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-1-5-21-3442511616-637977696-3186306149-1000\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 1284 set thread context of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 3924 set thread context of 412	3924	csrsll.exe	95
PID 3924 set thread context of 4300	3924	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1284-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1284-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3492-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3492-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3492-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1284-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023bb0-29.dat	upx
behavioral2/memory/3492-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3924-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3924-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4300-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4300-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4300-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4300-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4300-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3924-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3492-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/412-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4300-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe
Token: SeDebugPrivilege	412	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe
3492	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe
3924	csrsll.exe
412	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 1284 wrote to memory of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 1284 wrote to memory of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 1284 wrote to memory of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 1284 wrote to memory of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 1284 wrote to memory of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 1284 wrote to memory of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 1284 wrote to memory of 3492	1284	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	82
PID 3492 wrote to memory of 2856	3492	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	85
PID 3492 wrote to memory of 2856	3492	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	85
PID 3492 wrote to memory of 2856	3492	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	85
PID 2856 wrote to memory of 2816	2856	cmd.exe	88
PID 2856 wrote to memory of 2816	2856	cmd.exe	88
PID 2856 wrote to memory of 2816	2856	cmd.exe	88
PID 3492 wrote to memory of 3924	3492	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	89
PID 3492 wrote to memory of 3924	3492	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	89
PID 3492 wrote to memory of 3924	3492	2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe	89
PID 3924 wrote to memory of 412	3924	csrsll.exe	95
PID 3924 wrote to memory of 412	3924	csrsll.exe	95
PID 3924 wrote to memory of 412	3924	csrsll.exe	95
PID 3924 wrote to memory of 412	3924	csrsll.exe	95
PID 3924 wrote to memory of 412	3924	csrsll.exe	95
PID 3924 wrote to memory of 412	3924	csrsll.exe	95
PID 3924 wrote to memory of 412	3924	csrsll.exe	95
PID 3924 wrote to memory of 412	3924	csrsll.exe	95
PID 3924 wrote to memory of 4300	3924	csrsll.exe	96
PID 3924 wrote to memory of 4300	3924	csrsll.exe	96
PID 3924 wrote to memory of 4300	3924	csrsll.exe	96
PID 3924 wrote to memory of 4300	3924	csrsll.exe	96
PID 3924 wrote to memory of 4300	3924	csrsll.exe	96
PID 3924 wrote to memory of 4300	3924	csrsll.exe	96
PID 3924 wrote to memory of 4300	3924	csrsll.exe	96
PID 3924 wrote to memory of 4300	3924	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe
"C:\Users\Admin\AppData\Local\Temp\2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe
  "C:\Users\Admin\AppData\Local\Temp\2d9d95f5cdd8bc06a7f95191f269bdddc2bca62caf5815256bc33d88c2ec5d48N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3492
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VSRVI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2856
  - - 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:2816
- - 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:3924
  - - 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:412
  - - 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:4300

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\VSRVI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c81f87b443ffa0f2e2041dbb76fdc1a3

SHA1
e4a8e40659d39b917bbad4ab023abc96f9e194ed

SHA256
7f61489a025e0ce575d4bd1e517520f8750900cf8c91a3bb5a37e826a1d03330

SHA512
10d816cfee28901a0a2b6c764806ee5cc7d106e8e9fe793127facacd7e32d2b73307a422066bf768c8439f1a1d10a079241da43b9afcdcbe4b96234ab8676023

Download Submit
memory/412-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1284-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/1284-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1284-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1284-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/1284-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1284-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/3492-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3492-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3492-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3492-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3492-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3492-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3924-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3924-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3924-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4300-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4300-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads