modiloader | 0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40

Analysis

max time kernel
119s
max time network
118s
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 00:21

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General

Target

0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe
Size

90KB
MD5

c937b41aa0169c0a688d0e8dd09d4b90
SHA1

65ecc5ca87b0e07816215c0ba54e5ce304b24fd9
SHA256

0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40
SHA512

a7b559b58a4cfbc652989a2cc6891096bebefc961ef8db81278b7d307487e991db07d4cac7d55d05a8989e000abf7f40d30aa635022ff9d43199cb7f22831aec
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDH:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE35

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/4868-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4868-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4868-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4868-63-0x0000000000400000-0x0000000000414000-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	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe

Executes dropped EXE 3 IoCs

pid	Process
2088	csrsll.exe
684	csrsll.exe
4868	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 4152 set thread context of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 2088 set thread context of 684	2088	csrsll.exe	101
PID 2088 set thread context of 4868	2088	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4152-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4152-6-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4720-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4152-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b73-30.dat	upx
behavioral2/memory/4720-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2088-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2088-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4868-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4868-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4868-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2088-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4868-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4868-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4720-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/684-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4868-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe
Token: SeDebugPrivilege	684	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe
4720	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe
2088	csrsll.exe
684	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 4152 wrote to memory of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 4152 wrote to memory of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 4152 wrote to memory of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 4152 wrote to memory of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 4152 wrote to memory of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 4152 wrote to memory of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 4152 wrote to memory of 4720	4152	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	88
PID 4720 wrote to memory of 748	4720	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	90
PID 4720 wrote to memory of 748	4720	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	90
PID 4720 wrote to memory of 748	4720	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	90
PID 748 wrote to memory of 4576	748	cmd.exe	94
PID 748 wrote to memory of 4576	748	cmd.exe	94
PID 748 wrote to memory of 4576	748	cmd.exe	94
PID 4720 wrote to memory of 2088	4720	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	95
PID 4720 wrote to memory of 2088	4720	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	95
PID 4720 wrote to memory of 2088	4720	0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe	95
PID 2088 wrote to memory of 684	2088	csrsll.exe	101
PID 2088 wrote to memory of 684	2088	csrsll.exe	101
PID 2088 wrote to memory of 684	2088	csrsll.exe	101
PID 2088 wrote to memory of 684	2088	csrsll.exe	101
PID 2088 wrote to memory of 684	2088	csrsll.exe	101
PID 2088 wrote to memory of 684	2088	csrsll.exe	101
PID 2088 wrote to memory of 684	2088	csrsll.exe	101
PID 2088 wrote to memory of 684	2088	csrsll.exe	101
PID 2088 wrote to memory of 4868	2088	csrsll.exe	102
PID 2088 wrote to memory of 4868	2088	csrsll.exe	102
PID 2088 wrote to memory of 4868	2088	csrsll.exe	102
PID 2088 wrote to memory of 4868	2088	csrsll.exe	102
PID 2088 wrote to memory of 4868	2088	csrsll.exe	102
PID 2088 wrote to memory of 4868	2088	csrsll.exe	102
PID 2088 wrote to memory of 4868	2088	csrsll.exe	102
PID 2088 wrote to memory of 4868	2088	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe
"C:\Users\Admin\AppData\Local\Temp\0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Users\Admin\AppData\Local\Temp\0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe
  "C:\Users\Admin\AppData\Local\Temp\0c6b06dd22d85e37f1acb5c243710634ec2ed03090bc1959ba734b9f01535e40N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4720
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ETURA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:748
  - - 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:4576
- - 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:2088
  - - 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:684
  - - 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:4868

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\ETURA.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d9b6d9068afd9349f4840bccb664095f

SHA1
7d515b3bbc898e74c23407b01d8777c7a3d65122

SHA256
22d50787116e2eea990cc75dfc0afc0b5c5a115bcf54d33a223fd8f02fcd55df

SHA512
7d226559a7351204bdcef51615a97a341cac31633ef3ef9631fec3644c8971822eb91e4a34d0d28df24a01966247b5d73d19584e5df89b9d5f71ced468a24b3b

Download Submit
memory/684-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2088-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2088-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2088-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4152-5-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4152-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4152-6-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4720-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4868-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4868-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4868-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4868-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4868-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4868-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads