bb045c59bb4753ea894b4ef131fc7bc3dd3ca525b0ca5dfaa5665fe737a7b7cd

Analysis

max time kernel
174s
max time network
186s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 04:35

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General

Target

2866667f8a51f15b5a750d7e5301c9d8.exe
Size

100KB
MD5

2866667f8a51f15b5a750d7e5301c9d8
SHA1

0de2f55ebbd23e676fb27383cd1ebf4b2c7fb672
SHA256

bb045c59bb4753ea894b4ef131fc7bc3dd3ca525b0ca5dfaa5665fe737a7b7cd
SHA512

29c3f5df1bea7d127447dcaf1587fdbf79478374ccea568c9336d19bc0d413b5b089c121cbf314bcb24de5847c79377d19514dca414b5cbb177533c3c63b128b
SSDEEP

1536:mayt3u/g1bJjRroLVPjXCDw+/MO8zCzhiSayt3qyVjMoRPWn/sV:ma2tJNroLVrC78zEiSa2qyjTWg

Score

7^/10

Malware Config

Signatures

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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2866667f8a51f15b5a750d7e5301c9d8.exe

Executes dropped EXE 1 IoCs

pid	Process
3016	csrss.exe

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 3016 set thread context of 2760	3016	csrss.exe	94
PID 3016 set thread context of 0	3016	csrss.exe
PID 3016 set thread context of 0	3016	csrss.exe
PID 3016 set thread context of 0	3016	csrss.exe
PID 3016 set thread context of 0	3016	csrss.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\Britney Spears.mp3.exe	svchost.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\Britney Spears.mp3.exe	svchost.exe
File created	C:\Program Files\Common Files\microsoft shared\Source Engine\Ahead Nero 8.pif	svchost.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\Source Engine\Ahead Nero 8.pif	svchost.exe
File created	C:\Program Files\dotnet\shared\Doom 3 release 2.exe	svchost.exe
File opened for modification	C:\Program Files\dotnet\shared\Doom 3 release 2.exe	svchost.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\csrss.exe	2866667f8a51f15b5a750d7e5301c9d8.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeSystemtimePrivilege	1612	2866667f8a51f15b5a750d7e5301c9d8.exe
Token: SeSystemtimePrivilege	1612	2866667f8a51f15b5a750d7e5301c9d8.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 3016	1612	2866667f8a51f15b5a750d7e5301c9d8.exe	95
PID 1612 wrote to memory of 3016	1612	2866667f8a51f15b5a750d7e5301c9d8.exe	95
PID 1612 wrote to memory of 3016	1612	2866667f8a51f15b5a750d7e5301c9d8.exe	95
PID 3016 wrote to memory of 2760	3016	csrss.exe	94
PID 3016 wrote to memory of 2760	3016	csrss.exe	94
PID 3016 wrote to memory of 2760	3016	csrss.exe	94
PID 3016 wrote to memory of 2760	3016	csrss.exe	94

C:\Users\Admin\AppData\Local\Temp\2866667f8a51f15b5a750d7e5301c9d8.exe
"C:\Users\Admin\AppData\Local\Temp\2866667f8a51f15b5a750d7e5301c9d8.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\csrss.exe
  "C:\Windows\csrss.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3016

C:\Windows\SysWOW64\svchost.exe
svchost C:\Windows\csrss.exe
1⤵
- Drops file in Program Files directory
PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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/2760-9-0x0000000013140000-0x0000000013157000-memory.dmp

Filesize
92KB

Download
memory/2760-8-0x0000000013140000-0x0000000013157000-memory.dmp

Filesize
92KB

Download
memory/2760-10-0x0000000013140000-0x0000000013157000-memory.dmp

Filesize
92KB

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