arkei | df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731

General

Target

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
Size

100KB
MD5

c7a310982da68b10360854f9cd78e718
SHA1

60140c28e0b7db797a771c2dee081fa3812246db
SHA256

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
SHA512

6747fa3f7637922eeaa0feeb25d430dc6ab66fd9f3d22e7e5fd16bad9b75528a8174c34a8baf681950b64e8cdaa6a14e37633592e843c363e75468622ebd2ec3

Score

10^/10

arkei default stealer suricata

Malware Config

Extracted

Family

arkei

Botnet

Default

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4
suricata

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

Processes:

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

Loads dropped DLL 2 IoCs

Processes:

MSBuild.exe

pid process

2940 MSBuild.exe
2940 MSBuild.exe

pid	process
2940	MSBuild.exe
2940	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

description	pid	process	target process
PID 4196 set thread context of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1864 2940 WerFault.exe MSBuild.exe

pid	pid_target	process	target process
1864	2940	WerFault.exe	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

pid	process
4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

description pid process

Token: SeDebugPrivilege 4196 df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

description	pid	process
Token: SeDebugPrivilege	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

description	pid	process	target process
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe
PID 4196 wrote to memory of 2940	4196	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
"C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Loads dropped DLL
  PID:2940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2940 -s 576
    3⤵
    - Program crash
    PID:1864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2940 -ip 2940
1⤵
PID:4180

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\mozglue.dll

Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
C:\ProgramData\nss3.dll

Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/2940-134-0x0000000000000000-mapping.dmp

Download
memory/2940-135-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2940-137-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2940-138-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2940-139-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/4196-130-0x0000000000CB0000-0x0000000000CCE000-memory.dmp

Filesize
120KB

Download
memory/4196-131-0x0000000005A70000-0x0000000006014000-memory.dmp

Filesize
5.6MB

Download
memory/4196-132-0x0000000005560000-0x00000000055F2000-memory.dmp

Filesize
584KB

Download
memory/4196-133-0x0000000005540000-0x000000000554A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads