arkei | 34ba222ef969f09ecca5506cbada7c346469a96a6af0cdd21146d4435196deda

Analysis

max time kernel
116s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
01/06/2022, 16:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ghjkl.exe
Size

40KB
MD5

0a7b32e75a01764ef5389a1d9e72ed63
SHA1

871366f3573c3349e9dc7b67fef1ef575815c154
SHA256

34ba222ef969f09ecca5506cbada7c346469a96a6af0cdd21146d4435196deda
SHA512

f19a7d56a825b59d2841a4f10db940458d3255239e15bb9bbe1376e1fc47d4c97aef09d4e7ecd5a3a35fca44ec92edf60edd4a07ef1845d679c3bd4fc8fe43ba

Score

10^/10

arkei default discovery spyware 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
suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil
suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil
suricata
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
4840	Iioozcrscrdqdprjojgormars2.exe
2300	Iioozcrscrdqdprjojgormars2.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	ghjkl.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	Iioozcrscrdqdprjojgormars2.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	Iioozcrscrdqdprjojgormars2.exe

Loads dropped DLL 5 IoCs

pid	Process
3928	ghjkl.exe
3928	ghjkl.exe
3928	ghjkl.exe
2300	Iioozcrscrdqdprjojgormars2.exe
2300	Iioozcrscrdqdprjojgormars2.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4660 set thread context of 3928	4660	ghjkl.exe	93
PID 4840 set thread context of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97

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

System Information Discovery
T1082

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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Iioozcrscrdqdprjojgormars2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Iioozcrscrdqdprjojgormars2.exe

Delays execution with timeout.exe 3 IoCs

evasion

pid	Process
1536	timeout.exe
4128	timeout.exe
2408	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4660	ghjkl.exe
4660	ghjkl.exe
4840	Iioozcrscrdqdprjojgormars2.exe
4840	Iioozcrscrdqdprjojgormars2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4660	ghjkl.exe
Token: SeDebugPrivilege	4840	Iioozcrscrdqdprjojgormars2.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 4868	4660	ghjkl.exe	81
PID 4660 wrote to memory of 4868	4660	ghjkl.exe	81
PID 4660 wrote to memory of 4868	4660	ghjkl.exe	81
PID 4868 wrote to memory of 1536	4868	cmd.exe	83
PID 4868 wrote to memory of 1536	4868	cmd.exe	83
PID 4868 wrote to memory of 1536	4868	cmd.exe	83
PID 4660 wrote to memory of 4840	4660	ghjkl.exe	92
PID 4660 wrote to memory of 4840	4660	ghjkl.exe	92
PID 4660 wrote to memory of 4840	4660	ghjkl.exe	92
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4660 wrote to memory of 3928	4660	ghjkl.exe	93
PID 4840 wrote to memory of 2544	4840	Iioozcrscrdqdprjojgormars2.exe	94
PID 4840 wrote to memory of 2544	4840	Iioozcrscrdqdprjojgormars2.exe	94
PID 4840 wrote to memory of 2544	4840	Iioozcrscrdqdprjojgormars2.exe	94
PID 2544 wrote to memory of 4128	2544	cmd.exe	96
PID 2544 wrote to memory of 4128	2544	cmd.exe	96
PID 2544 wrote to memory of 4128	2544	cmd.exe	96
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 4840 wrote to memory of 2300	4840	Iioozcrscrdqdprjojgormars2.exe	97
PID 2300 wrote to memory of 4372	2300	Iioozcrscrdqdprjojgormars2.exe	98
PID 2300 wrote to memory of 4372	2300	Iioozcrscrdqdprjojgormars2.exe	98
PID 2300 wrote to memory of 4372	2300	Iioozcrscrdqdprjojgormars2.exe	98
PID 4372 wrote to memory of 2408	4372	cmd.exe	100
PID 4372 wrote to memory of 2408	4372	cmd.exe	100
PID 4372 wrote to memory of 2408	4372	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\ghjkl.exe
"C:\Users\Admin\AppData\Local\Temp\ghjkl.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 20
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4868
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 20
    3⤵
    - Delays execution with timeout.exe
    PID:1536
- C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe
  "C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4840
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 20
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2544
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 20
      4⤵
      Delays execution with timeout.exe
      PID:4128
- - C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe
    C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious use of WriteProcessMemory
    PID:2300
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4372
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:2408
- C:\Users\Admin\AppData\Local\Temp\ghjkl.exe
  C:\Users\Admin\AppData\Local\Temp\ghjkl.exe
  2⤵
  - Loads dropped DLL
  PID:3928

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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
C:\Users\Admin\AppData\LocalLow\mozglue.dll

Filesize
612KB

MD5
f07d9977430e762b563eaadc2b94bbfa

SHA1
da0a05b2b8d269fb73558dfcf0ed5c167f6d3877

SHA256
4191faf7e5eb105a0f4c5c6ed3e9e9c71014e8aa39bbee313bc92d1411e9e862

SHA512
6afd512e4099643bba3fc7700dd72744156b78b7bda10263ba1f8571d1e282133a433215a9222a7799f9824f244a2bc80c2816a62de1497017a4b26d562b7eaf

Download Submit
C:\Users\Admin\AppData\LocalLow\nss3.dll

Filesize
1.9MB

MD5
f67d08e8c02574cbc2f1122c53bfb976

SHA1
6522992957e7e4d074947cad63189f308a80fcf2

SHA256
c65b7afb05ee2b2687e6280594019068c3d3829182dfe8604ce4adf2116cc46e

SHA512
2e9d0a211d2b085514f181852fae6e7ca6aed4d29f396348bedb59c556e39621810a9a74671566a49e126ec73a60d0f781fa9085eb407df1eefd942c18853be5

Download Submit
C:\Users\Admin\AppData\LocalLow\sqlite3.dll

Filesize
1.0MB

MD5
dbf4f8dcefb8056dc6bae4b67ff810ce

SHA1
bbac1dd8a07c6069415c04b62747d794736d0689

SHA256
47b64311719000fa8c432165a0fdcdfed735d5b54977b052de915b1cbbbf9d68

SHA512
b572ca2f2e4a5cc93e4fcc7a18c0ae6df888aa4c55bc7da591e316927a4b5cfcbdda6e60018950be891ff3b26f470cc5cce34d217c2d35074322ab84c32a25d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe

Filesize
40KB

MD5
e8065b3712ff329829a9a9d191b684d7

SHA1
be243f806044523da8cfbd65b0aa0057e24ee984

SHA256
6b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07

SHA512
73641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe

Filesize
40KB

MD5
e8065b3712ff329829a9a9d191b684d7

SHA1
be243f806044523da8cfbd65b0aa0057e24ee984

SHA256
6b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07

SHA512
73641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe

Filesize
40KB

MD5
e8065b3712ff329829a9a9d191b684d7

SHA1
be243f806044523da8cfbd65b0aa0057e24ee984

SHA256
6b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07

SHA512
73641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0

Download Submit
memory/2300-154-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/2300-176-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2300-150-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2300-149-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2300-146-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/3928-140-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3928-144-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3928-138-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3928-142-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4660-130-0x0000000000430000-0x0000000000440000-memory.dmp

Filesize
64KB

Download
memory/4840-136-0x0000000000190000-0x00000000001A0000-memory.dmp

Filesize
64KB

Download