modiloader | fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11/08/2024, 04:36

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General

Target

fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe
Size

90KB
MD5

224c2ebd2805d02d690abd6b5a960a71
SHA1

8dccc5f36fbbcaec507c9d461df2d3f9fdd20263
SHA256

fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717
SHA512

236765539fd15479b184078f03070c78c5ca187f69fee9f9cdeb3b6c8df35a174919bbdd5dc5ca7531f9c5580c206fc079094f9c306d6eabab724aad26dd3bca
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/2648-60-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2648-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2648-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2648-62-0x0000000000400000-0x0000000000414000-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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe

Executes dropped EXE 3 IoCs

pid	Process
1428	csrsll.exe
4332	csrsll.exe
2648	csrsll.exe

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4636-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/212-3-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/212-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/212-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4636-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b0000000234c7-28.dat	upx
behavioral2/memory/1428-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1428-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1428-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2648-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2648-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/212-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1428-49-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2648-60-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2648-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2648-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4332-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2648-62-0x0000000000400000-0x0000000000414000-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-1-5-21-945322488-2060912225-3527527000-1000\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 4636 set thread context of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 1428 set thread context of 4332	1428	csrsll.exe	98
PID 1428 set thread context of 2648	1428	csrsll.exe	99

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	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.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	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe
Token: SeDebugPrivilege	4332	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe
212	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe
1428	csrsll.exe
4332	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 4636 wrote to memory of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 4636 wrote to memory of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 4636 wrote to memory of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 4636 wrote to memory of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 4636 wrote to memory of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 4636 wrote to memory of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 4636 wrote to memory of 212	4636	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	87
PID 212 wrote to memory of 2640	212	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	88
PID 212 wrote to memory of 2640	212	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	88
PID 212 wrote to memory of 2640	212	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	88
PID 2640 wrote to memory of 1892	2640	cmd.exe	91
PID 2640 wrote to memory of 1892	2640	cmd.exe	91
PID 2640 wrote to memory of 1892	2640	cmd.exe	91
PID 212 wrote to memory of 1428	212	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	92
PID 212 wrote to memory of 1428	212	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	92
PID 212 wrote to memory of 1428	212	fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe	92
PID 1428 wrote to memory of 4332	1428	csrsll.exe	98
PID 1428 wrote to memory of 4332	1428	csrsll.exe	98
PID 1428 wrote to memory of 4332	1428	csrsll.exe	98
PID 1428 wrote to memory of 4332	1428	csrsll.exe	98
PID 1428 wrote to memory of 4332	1428	csrsll.exe	98
PID 1428 wrote to memory of 4332	1428	csrsll.exe	98
PID 1428 wrote to memory of 4332	1428	csrsll.exe	98
PID 1428 wrote to memory of 4332	1428	csrsll.exe	98
PID 1428 wrote to memory of 2648	1428	csrsll.exe	99
PID 1428 wrote to memory of 2648	1428	csrsll.exe	99
PID 1428 wrote to memory of 2648	1428	csrsll.exe	99
PID 1428 wrote to memory of 2648	1428	csrsll.exe	99
PID 1428 wrote to memory of 2648	1428	csrsll.exe	99
PID 1428 wrote to memory of 2648	1428	csrsll.exe	99
PID 1428 wrote to memory of 2648	1428	csrsll.exe	99
PID 1428 wrote to memory of 2648	1428	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe
"C:\Users\Admin\AppData\Local\Temp\fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Users\Admin\AppData\Local\Temp\fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.exe
  "C:\Users\Admin\AppData\Local\Temp\fcca1a274b948b4d716c90af917cf5e59b0768056ad01788e14d87b167358717.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\RPTOV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2640
  - - 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:1892
- - 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:1428
  - - 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:4332
  - - 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:2648

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\RPTOV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
025d42dd2cf050ace09a19d12b996f82

SHA1
d3dd844b4a5266d7b905264e2542514a41ed0d12

SHA256
26d8958dce02f5e3bea97dfa8eec882138983799aceb841b4a3381b7c154d94c

SHA512
112dc82aafdaf2bf89cd6afca0f55ebaf05d576441435613317146aa483a7fba4b21e2dbc6026b5542d20bc9bc6620cf9b184fa1e2231e97ba7c823780ddf450

Download Submit
memory/212-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-55-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

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

Filesize
44KB

Download
memory/212-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/212-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1428-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1428-49-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1428-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1428-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2648-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4332-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4636-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4636-8-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4636-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4636-5-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4636-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads