modiloader | 4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7

Analysis

max time kernel
149s
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
18/01/2025, 01:30

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General

Target

4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
Size

90KB
MD5

e613154a8d8a88041bf1288813824865
SHA1

cd22f88f30185603362e15d66d05bd11a26c8634
SHA256

4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7
SHA512

c7fae80f114d4b310ea9d1de6a78fbb56e59f2a2a626e58a5dea941e6c558e172377b486ea7bbe36a4be6b49f4e9a174122bee1938bea4df56f76f2ed3b3d33a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDv:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE31

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/1276-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1276-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1276-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1276-62-0x0000000000400000-0x0000000000414000-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	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe

Executes dropped EXE 3 IoCs

pid	Process
2856	csrsll.exe
2540	csrsll.exe
1276	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 1616 set thread context of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 2856 set thread context of 2540	2856	csrsll.exe	95
PID 2856 set thread context of 1276	2856	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1616-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1616-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3624-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3624-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1616-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3624-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3624-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023ca5-29.dat	upx
behavioral2/memory/3624-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2856-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2856-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1276-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1276-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1276-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1276-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2856-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1276-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3624-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2540-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1276-62-0x0000000000400000-0x0000000000414000-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	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.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	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe
Token: SeDebugPrivilege	2540	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
3624	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
2856	csrsll.exe
2540	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 1616 wrote to memory of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 1616 wrote to memory of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 1616 wrote to memory of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 1616 wrote to memory of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 1616 wrote to memory of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 1616 wrote to memory of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 1616 wrote to memory of 3624	1616	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	83
PID 3624 wrote to memory of 4312	3624	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	84
PID 3624 wrote to memory of 4312	3624	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	84
PID 3624 wrote to memory of 4312	3624	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	84
PID 4312 wrote to memory of 884	4312	cmd.exe	88
PID 4312 wrote to memory of 884	4312	cmd.exe	88
PID 4312 wrote to memory of 884	4312	cmd.exe	88
PID 3624 wrote to memory of 2856	3624	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	89
PID 3624 wrote to memory of 2856	3624	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	89
PID 3624 wrote to memory of 2856	3624	4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe	89
PID 2856 wrote to memory of 2540	2856	csrsll.exe	95
PID 2856 wrote to memory of 2540	2856	csrsll.exe	95
PID 2856 wrote to memory of 2540	2856	csrsll.exe	95
PID 2856 wrote to memory of 2540	2856	csrsll.exe	95
PID 2856 wrote to memory of 2540	2856	csrsll.exe	95
PID 2856 wrote to memory of 2540	2856	csrsll.exe	95
PID 2856 wrote to memory of 2540	2856	csrsll.exe	95
PID 2856 wrote to memory of 2540	2856	csrsll.exe	95
PID 2856 wrote to memory of 1276	2856	csrsll.exe	96
PID 2856 wrote to memory of 1276	2856	csrsll.exe	96
PID 2856 wrote to memory of 1276	2856	csrsll.exe	96
PID 2856 wrote to memory of 1276	2856	csrsll.exe	96
PID 2856 wrote to memory of 1276	2856	csrsll.exe	96
PID 2856 wrote to memory of 1276	2856	csrsll.exe	96
PID 2856 wrote to memory of 1276	2856	csrsll.exe	96
PID 2856 wrote to memory of 1276	2856	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
"C:\Users\Admin\AppData\Local\Temp\4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Users\Admin\AppData\Local\Temp\4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe
  "C:\Users\Admin\AppData\Local\Temp\4f41adcc56a1f4a4ab54f92712d6348580431916aa5688d9408646417f5ffed7.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3624
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QRNLN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4312
  - - 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:884
- - 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:2856
  - - 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:2540
  - - 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:1276

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\QRNLN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8b06481013af6cfd0c7fc44332cfc28b

SHA1
72b154694160405c22652d0f17997b1d9f18ec2e

SHA256
8215ddfda4190762500ff666f44737b9d7801d760e74e87ea72005f701312286

SHA512
b806c23d37f4d8d29b661383e8445d8496922c9deb6596aec7a75744cdce9b92ed58e329fe05b52e1e714534dd108c324ec59401b27a0f05ff9378654eac5d7d

Download Submit
memory/1276-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1276-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1276-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1276-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1276-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1276-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1616-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/1616-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1616-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1616-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1616-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1616-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/2540-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2856-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2856-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2856-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3624-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3624-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3624-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3624-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3624-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3624-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3624-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads