modiloader | 8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b

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
02/12/2024, 03:24

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General

Target

8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe
Size

90KB
MD5

8d13644a35eaacfbec4d6859b1a94d7a
SHA1

203768d5c34fd73b55171d23ee4b56cae3b763d5
SHA256

8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b
SHA512

c20a0306b6348a87b3068f9498a85a95de25fb144796ef2c5835c14b2b51ed7edf4f9eecb0a4b54028ed683d9196a23941ee55f6e9117192e4f3eba91133ba4b
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD/:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3B

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/1280-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1280-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1280-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1280-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe

Executes dropped EXE 3 IoCs

pid	Process
3308	csrsll.exe
4120	csrsll.exe
1280	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-1-5-21-3227495264-2217614367-4027411560-1000\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 1608 set thread context of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 3308 set thread context of 4120	3308	csrsll.exe	92
PID 3308 set thread context of 1280	3308	csrsll.exe	93

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1608-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1608-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4576-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4576-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4576-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1608-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b66-29.dat	upx
behavioral2/memory/4576-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3308-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3308-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1280-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1280-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1280-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1280-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1280-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3308-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4576-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4120-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1280-62-0x0000000000400000-0x0000000000414000-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	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe
Token: SeDebugPrivilege	4120	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe
4576	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe
3308	csrsll.exe
4120	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 1608 wrote to memory of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 1608 wrote to memory of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 1608 wrote to memory of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 1608 wrote to memory of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 1608 wrote to memory of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 1608 wrote to memory of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 1608 wrote to memory of 4576	1608	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	82
PID 4576 wrote to memory of 3648	4576	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	83
PID 4576 wrote to memory of 3648	4576	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	83
PID 4576 wrote to memory of 3648	4576	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	83
PID 3648 wrote to memory of 2400	3648	cmd.exe	86
PID 3648 wrote to memory of 2400	3648	cmd.exe	86
PID 3648 wrote to memory of 2400	3648	cmd.exe	86
PID 4576 wrote to memory of 3308	4576	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	87
PID 4576 wrote to memory of 3308	4576	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	87
PID 4576 wrote to memory of 3308	4576	8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe	87
PID 3308 wrote to memory of 4120	3308	csrsll.exe	92
PID 3308 wrote to memory of 4120	3308	csrsll.exe	92
PID 3308 wrote to memory of 4120	3308	csrsll.exe	92
PID 3308 wrote to memory of 4120	3308	csrsll.exe	92
PID 3308 wrote to memory of 4120	3308	csrsll.exe	92
PID 3308 wrote to memory of 4120	3308	csrsll.exe	92
PID 3308 wrote to memory of 4120	3308	csrsll.exe	92
PID 3308 wrote to memory of 4120	3308	csrsll.exe	92
PID 3308 wrote to memory of 1280	3308	csrsll.exe	93
PID 3308 wrote to memory of 1280	3308	csrsll.exe	93
PID 3308 wrote to memory of 1280	3308	csrsll.exe	93
PID 3308 wrote to memory of 1280	3308	csrsll.exe	93
PID 3308 wrote to memory of 1280	3308	csrsll.exe	93
PID 3308 wrote to memory of 1280	3308	csrsll.exe	93
PID 3308 wrote to memory of 1280	3308	csrsll.exe	93
PID 3308 wrote to memory of 1280	3308	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe
"C:\Users\Admin\AppData\Local\Temp\8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Users\Admin\AppData\Local\Temp\8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe
  "C:\Users\Admin\AppData\Local\Temp\8d2d4be3a59b331d4a19d3f931b6620194421530568981f28b598ab4cac8b80b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4576
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AEHST.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3648
  - - 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:2400
- - 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:3308
  - - 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:4120
  - - 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:1280

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\AEHST.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f8378716d4b350ee1d9038f858c8345e

SHA1
3304c0809408343fc12eea1be819b32dbc640a39

SHA256
335ff5602c8f9d1c30612e1cf2b0e0f63b3e4d80bc82e9311d6fa5108815b699

SHA512
ee3a7998d983295dd9f05d3def12eece668d5c82cba119296445912d360f7f74000a30bf37f98b500b0eb9a36d1db765e5eb114313049f9b5c7576f1132d8c82

Download Submit
memory/1280-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1280-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1280-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1280-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1280-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1280-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1608-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1608-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1608-3-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/1608-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1608-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1608-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3308-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3308-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3308-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4120-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4576-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4576-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4576-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4576-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4576-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads