46604751c20aebeac273f00f5614a5b6ac72e26a9486e006fb37dd90cf22f6b8

General

Target
ldr_clp.exe
Size 180KB
Sample241025-pexnpsyfqa
SHA256 46604751c20aebeac273f00f5614a5b6ac72e26a9486e006fb37dd90cf22f6b8
MD5 6248c79d3f2a0b5228d28b3d98c0aa44
SHA1 bf2c6ef96046c5a23ed0cc9353258047688026a8
SHA512 7c557f81302ce0bea59760e86461df28cfd8c770966916d04367045b407a2f86f4270c8f8804a7ae715b45f35c7f2c341091af9841dd92bbe6f3db1fc25feb08
SSDEEP 3072:aioTucolLj8fuPhWHcPSZ5OdIxnwUc35M6JB4xSYKhPxxYjU2gvZ1Z:btxSEW8PW57nwUc3GXN+Z1Z
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2716	AutoIt3.exe

Loads dropped DLL 1 IoCs

pid	Process
2052	ldr_clp.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\dbfhcae = "\"C:\\gccfdgd\\AutoIt3.exe\" C:\\gccfdgd\\dbfhcae.a3x"	AutoIt3.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 2672	2716	AutoIt3.exe	32

System Location Discovery: System Language Discovery 1 TTPs 2 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	ldr_clp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AutoIt3.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AutoIt3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AutoIt3.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 2716	2052	ldr_clp.exe	31
PID 2052 wrote to memory of 2716	2052	ldr_clp.exe	31
PID 2052 wrote to memory of 2716	2052	ldr_clp.exe	31
PID 2052 wrote to memory of 2716	2052	ldr_clp.exe	31
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32
PID 2716 wrote to memory of 2672	2716	AutoIt3.exe	32

C:\Users\Admin\AppData\Local\Temp\ldr_clp.exe
"C:\Users\Admin\AppData\Local\Temp\ldr_clp.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Users\Admin\AppData\Local\Temp\XEBB9H\AutoIt3.exe
  "C:\Users\Admin\AppData\Local\Temp\XEBB9H\AutoIt3.exe" "C:\Users\Admin\AppData\Local\Temp\XEBB9H\Petroleum.imp"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:2716
- - C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe
    "C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe"
    3⤵
    PID:2672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Petroleum.imp

Path C:\Users\Admin\AppData\Local\Temp\XEBB9H\Petroleum.imp
Size 5.7MB
SHA256 6f8bfe8bd13b7d1a0ff9ffbabc7d0dcfe00edddc0370e91f3cab4fd42a30baf0
MD5 a701d9dc50df85ff2d2b628e5f79ead3
SHA1 7ce1dae9d794a9547445a045bf36dd56594bb01a
SHA512 94545418aad6cc2a1becd16b77632b453939d5b379cbf636369f1619c2a4036c3c3c0e12ce76e884a8f3a21e1fa13e8d6ee0b3de88e223c7dc8b9ca73b84bea2
SSDEEP 98304:8WwYoUncYNxOfZ8Q9dnzp+g9v8s2FIgZMyI9rHYUII:FncW0fZ8Q3zp/NX2MyI9r44
MD5 SHA1 SHA512 SSDEEP

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AutoIt3.exe

Path \Users\Admin\AppData\Local\Temp\XEBB9H\AutoIt3.exe
Size 921KB
SHA256 1da298cab4d537b0b7b5dabf09bff6a212b9e45731e0cc772f99026005fb9e48
MD5 3f58a517f1f4796225137e7659ad2adb
SHA1 e264ba0e9987b0ad0812e5dd4dd3075531cfe269
SHA512 acf740aafce390d06c6a76c84e7ae7c0f721731973aadbe3e57f2eb63241a01303cc6bf11a3f9a88f8be0237998b5772bdaf569137d63ba3d0f877e7d27fc634
SSDEEP 24576:MghN1a6pzWZ12+f+Qa7N4nEIRQ1hOOLkF6av8uh:vhN1aQzJD4BuTxavfh
MD5 SHA1 SHA512 SSDEEP

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memory/2672-13-0x0000000000400000-0x00000000009BA000-memory.dmp

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memory/2672-14-0x0000000000400000-0x00000000009BA000-memory.dmp

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memory/2672-15-0x0000000000400000-0x00000000009BA000-memory.dmp

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memory/2672-12-0x0000000000400000-0x00000000009BA000-memory.dmp

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memory/2716-8-0x0000000000CC0000-0x00000000010C0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads