modiloader | fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2024 01:54

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General

Target

fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe
Size

326KB
MD5

95a635eb4778983d887ecea8b91ad42b
SHA1

ab59ca3497e2b37dbec7616af942a3e92189a5fb
SHA256

fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b
SHA512

94b09eb9c2677a35ce59dba0bd80c3a28a8fedbf8f79e0d7f505d4db73cd8d65a84f4c9a1be0a2e742ea018edca9250bc893b3c9f1acd83c8473251bc2dda072
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+O1sVG0/pZ6iPC8

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1680-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1680-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1680-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1680-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe

Executes dropped EXE 3 IoCs

pid	Process
4560	csrsll.exe
2812	csrsll.exe
1680	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3580-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3580-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2556-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2556-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2556-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3580-12-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000a000000023be1-29.dat	upx
behavioral2/memory/4560-36-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2556-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4560-41-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1680-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2556-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4560-57-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1680-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1680-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1680-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1680-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4560-42-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2812-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1680-61-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-2629364133-3182087385-364449604-1000\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 3580 set thread context of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 4560 set thread context of 2812	4560	csrsll.exe	100
PID 4560 set thread context of 1680	4560	csrsll.exe	101

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	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe
Token: SeDebugPrivilege	2812	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe
2556	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe
4560	csrsll.exe
2812	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3580 wrote to memory of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 3580 wrote to memory of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 3580 wrote to memory of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 3580 wrote to memory of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 3580 wrote to memory of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 3580 wrote to memory of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 3580 wrote to memory of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 3580 wrote to memory of 2556	3580	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	92
PID 2556 wrote to memory of 1760	2556	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	93
PID 2556 wrote to memory of 1760	2556	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	93
PID 2556 wrote to memory of 1760	2556	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	93
PID 1760 wrote to memory of 4668	1760	cmd.exe	96
PID 1760 wrote to memory of 4668	1760	cmd.exe	96
PID 1760 wrote to memory of 4668	1760	cmd.exe	96
PID 2556 wrote to memory of 4560	2556	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	97
PID 2556 wrote to memory of 4560	2556	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	97
PID 2556 wrote to memory of 4560	2556	fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe	97
PID 4560 wrote to memory of 2812	4560	csrsll.exe	100
PID 4560 wrote to memory of 2812	4560	csrsll.exe	100
PID 4560 wrote to memory of 2812	4560	csrsll.exe	100
PID 4560 wrote to memory of 2812	4560	csrsll.exe	100
PID 4560 wrote to memory of 2812	4560	csrsll.exe	100
PID 4560 wrote to memory of 2812	4560	csrsll.exe	100
PID 4560 wrote to memory of 2812	4560	csrsll.exe	100
PID 4560 wrote to memory of 2812	4560	csrsll.exe	100
PID 4560 wrote to memory of 1680	4560	csrsll.exe	101
PID 4560 wrote to memory of 1680	4560	csrsll.exe	101
PID 4560 wrote to memory of 1680	4560	csrsll.exe	101
PID 4560 wrote to memory of 1680	4560	csrsll.exe	101
PID 4560 wrote to memory of 1680	4560	csrsll.exe	101
PID 4560 wrote to memory of 1680	4560	csrsll.exe	101
PID 4560 wrote to memory of 1680	4560	csrsll.exe	101
PID 4560 wrote to memory of 1680	4560	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe
"C:\Users\Admin\AppData\Local\Temp\fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Users\Admin\AppData\Local\Temp\fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe
  "C:\Users\Admin\AppData\Local\Temp\fc9c9ea86620c692e2a80dfe25e672fa0ebdc09d6742afa052b043507c6d721b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2556
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BGUUI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1760
  - - 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:4668
- - 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:4560
  - - 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: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
      PID:1680

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\BGUUI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
9e0b4159236289d2a5391012ff921600

SHA1
86b6b786ab03d2f28c30605304ad04f83de2c5ec

SHA256
659515dd30845082bfd6945addd54f4c3284c0fe071b6dfd1db22ae4f1c911fe

SHA512
bb632e77d138f3f2b04a4d531a04067b478a49e158e562566dc09c674967c82333db1d1d7ad984b0dd199ac097f0270747c2a67e6c85057f98feccbb28c0ac71

Download Submit
memory/1680-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1680-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1680-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1680-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1680-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1680-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2556-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2812-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3580-7-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/3580-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3580-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3580-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3580-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/3580-12-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3580-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4560-41-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4560-57-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4560-42-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4560-36-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads