cdc6ac3c1c5e5d54fbfdbb825b7ea5f0a6b0886fc0cee7ff3cc51cef8d064b28

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2023, 22:47

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General

Target

steam_api.dll
Size

1.3MB
MD5

e869484d80d8d08b1a31639127c3d344
SHA1

29208a8734f6c713d2ea7c343ff159d35358e356
SHA256

cdc6ac3c1c5e5d54fbfdbb825b7ea5f0a6b0886fc0cee7ff3cc51cef8d064b28
SHA512

79e01f60c18c24d2fb366952b28463a48ec0955220e65f99c30870a2c4fd12a95619f4de665a055cedfe5623c8d083f71ec8861e6b6d2570424a9f088bf45891
SSDEEP

24576:bKpb+Lpmbz9gAXilDGgP9GX0dc4hxU4BVoXoo1DJXLFT4mknD1pVOGXSCbAle:K+AzYDGsC0/9cDXT4t1iCcle

Score

5^/10

Malware Config

Signatures

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4956	rundll32.exe

Checks processor information in registry 2 TTPs 3 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	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3224	WINWORD.EXE
3224	WINWORD.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3224	WINWORD.EXE
3224	WINWORD.EXE
3224	WINWORD.EXE
3224	WINWORD.EXE
3224	WINWORD.EXE
3224	WINWORD.EXE
3224	WINWORD.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 4956	4936	rundll32.exe	82
PID 4936 wrote to memory of 4956	4936	rundll32.exe	82
PID 4936 wrote to memory of 4956	4936	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\steam_api.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\steam_api.dll,#1
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:4956

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4568

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\Documents\These.docx" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3224

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3224-136-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/3224-137-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/3224-138-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/3224-139-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/3224-140-0x00007FF7C7010000-0x00007FF7C7020000-memory.dmp

Filesize
64KB

Download
memory/3224-141-0x00007FF7C4B50000-0x00007FF7C4B60000-memory.dmp

Filesize
64KB

Download
memory/3224-142-0x00007FF7C4B50000-0x00007FF7C4B60000-memory.dmp

Filesize
64KB

Download
memory/4956-133-0x00000000751C0000-0x0000000075317000-memory.dmp

Filesize
1.3MB

Download
memory/4956-134-0x00000000751C0000-0x0000000075317000-memory.dmp

Filesize
1.3MB

Download
memory/4956-135-0x00000000751C0000-0x00000000751E9000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads