arkei | 34ba222ef969f09ecca5506cbada7c346469a96a6af0cdd21146d4435196deda

Analysis

max time kernel
151s
max time network
143s
platform
windows7_x64
resource
win7-20220414-en
submitted
01/06/2022, 16:06

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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

Executes dropped EXE 2 IoCs

pid	Process
2028	Iioozcrscrdqdprjojgormars2.exe
2004	Iioozcrscrdqdprjojgormars2.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	ghjkl.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	Iioozcrscrdqdprjojgormars2.exe

Loads dropped DLL 4 IoCs

pid	Process
812	ghjkl.exe
2028	Iioozcrscrdqdprjojgormars2.exe
2004	Iioozcrscrdqdprjojgormars2.exe
2004	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 812 set thread context of 592	812	ghjkl.exe	31
PID 2028 set thread context of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37

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
960	timeout.exe
1668	timeout.exe
528	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
812	ghjkl.exe
2028	Iioozcrscrdqdprjojgormars2.exe
2028	Iioozcrscrdqdprjojgormars2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	812	ghjkl.exe
Token: SeDebugPrivilege	2028	Iioozcrscrdqdprjojgormars2.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 812 wrote to memory of 1764	812	ghjkl.exe	27
PID 812 wrote to memory of 1764	812	ghjkl.exe	27
PID 812 wrote to memory of 1764	812	ghjkl.exe	27
PID 812 wrote to memory of 1764	812	ghjkl.exe	27
PID 1764 wrote to memory of 960	1764	cmd.exe	29
PID 1764 wrote to memory of 960	1764	cmd.exe	29
PID 1764 wrote to memory of 960	1764	cmd.exe	29
PID 1764 wrote to memory of 960	1764	cmd.exe	29
PID 812 wrote to memory of 2028	812	ghjkl.exe	30
PID 812 wrote to memory of 2028	812	ghjkl.exe	30
PID 812 wrote to memory of 2028	812	ghjkl.exe	30
PID 812 wrote to memory of 2028	812	ghjkl.exe	30
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 812 wrote to memory of 592	812	ghjkl.exe	31
PID 2028 wrote to memory of 1076	2028	Iioozcrscrdqdprjojgormars2.exe	32
PID 2028 wrote to memory of 1076	2028	Iioozcrscrdqdprjojgormars2.exe	32
PID 2028 wrote to memory of 1076	2028	Iioozcrscrdqdprjojgormars2.exe	32
PID 2028 wrote to memory of 1076	2028	Iioozcrscrdqdprjojgormars2.exe	32
PID 1076 wrote to memory of 1668	1076	cmd.exe	34
PID 1076 wrote to memory of 1668	1076	cmd.exe	34
PID 1076 wrote to memory of 1668	1076	cmd.exe	34
PID 1076 wrote to memory of 1668	1076	cmd.exe	34
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2028 wrote to memory of 2004	2028	Iioozcrscrdqdprjojgormars2.exe	37
PID 2004 wrote to memory of 1548	2004	Iioozcrscrdqdprjojgormars2.exe	38
PID 2004 wrote to memory of 1548	2004	Iioozcrscrdqdprjojgormars2.exe	38
PID 2004 wrote to memory of 1548	2004	Iioozcrscrdqdprjojgormars2.exe	38
PID 2004 wrote to memory of 1548	2004	Iioozcrscrdqdprjojgormars2.exe	38
PID 1548 wrote to memory of 528	1548	cmd.exe	40
PID 1548 wrote to memory of 528	1548	cmd.exe	40
PID 1548 wrote to memory of 528	1548	cmd.exe	40
PID 1548 wrote to memory of 528	1548	cmd.exe	40

C:\Users\Admin\AppData\Local\Temp\ghjkl.exe
"C:\Users\Admin\AppData\Local\Temp\ghjkl.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 20
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 20
    3⤵
    - Delays execution with timeout.exe
    PID:960
- C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe
  "C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 20
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1076
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 20
      4⤵
      Delays execution with timeout.exe
      PID:1668
- - C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe
    C:\Users\Admin\AppData\Local\Temp\Iioozcrscrdqdprjojgormars2.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious use of WriteProcessMemory
    PID:2004
  - - 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:1548
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:528
- C:\Users\Admin\AppData\Local\Temp\ghjkl.exe
  C:\Users\Admin\AppData\Local\Temp\ghjkl.exe
  2⤵
  PID:592

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

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Downloads

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
\ProgramData\mozglue.dll

Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
\ProgramData\nss3.dll

Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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

Filesize
40KB

MD5
e8065b3712ff329829a9a9d191b684d7

SHA1
be243f806044523da8cfbd65b0aa0057e24ee984

SHA256
6b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07

SHA512
73641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0

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

Filesize
40KB

MD5
e8065b3712ff329829a9a9d191b684d7

SHA1
be243f806044523da8cfbd65b0aa0057e24ee984

SHA256
6b7698fc83039d223e81f3352ea03afdb4fa4c3042a92683298c7fa5f67d5a07

SHA512
73641d298b07f51da61218babfec650d7a9de8c3ad6d10c81dd14cb1ac5d50e19624cfbde78f1c7af10698bfa76e83a79a751569839fabc547cb253c5bd3e0c0

Download Submit
memory/592-93-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/592-84-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/592-80-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/592-78-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/592-77-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/592-72-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/592-74-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/592-71-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/812-88-0x0000000071670000-0x0000000072080000-memory.dmp

Filesize
10.1MB

Download
memory/812-87-0x0000000072080000-0x000000007340F000-memory.dmp

Filesize
19.6MB

Download
memory/812-55-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/812-65-0x0000000004CC0000-0x0000000004D0C000-memory.dmp

Filesize
304KB

Download
memory/812-64-0x0000000002350000-0x00000000023A4000-memory.dmp

Filesize
336KB

Download
memory/812-63-0x0000000070750000-0x0000000070E8E000-memory.dmp

Filesize
7.2MB

Download
memory/812-62-0x00000000739D0000-0x0000000073ACC000-memory.dmp

Filesize
1008KB

Download
memory/812-60-0x0000000070E90000-0x0000000071670000-memory.dmp

Filesize
7.9MB

Download
memory/812-61-0x0000000072080000-0x000000007340F000-memory.dmp

Filesize
19.6MB

Download
memory/812-58-0x0000000072080000-0x000000007340F000-memory.dmp

Filesize
19.6MB

Download
memory/812-59-0x0000000071670000-0x0000000072080000-memory.dmp

Filesize
10.1MB

Download
memory/812-54-0x0000000000DE0000-0x0000000000DF0000-memory.dmp

Filesize
64KB

Download
memory/812-89-0x0000000070E90000-0x0000000071670000-memory.dmp

Filesize
7.9MB

Download
memory/2004-98-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-115-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-140-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-136-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-99-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-101-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-103-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-104-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-106-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-107-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2004-117-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/2004-111-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2028-112-0x0000000072080000-0x000000007340F000-memory.dmp

Filesize
19.6MB

Download
memory/2028-113-0x0000000071670000-0x0000000072080000-memory.dmp

Filesize
10.1MB

Download
memory/2028-114-0x0000000070E90000-0x0000000071670000-memory.dmp

Filesize
7.9MB

Download
memory/2028-96-0x00000000048E0000-0x0000000004946000-memory.dmp

Filesize
408KB

Download
memory/2028-94-0x00000000736E0000-0x00000000737DC000-memory.dmp

Filesize
1008KB

Download
memory/2028-70-0x0000000000800000-0x0000000000810000-memory.dmp

Filesize
64KB

Download
memory/2028-92-0x0000000070E90000-0x0000000071670000-memory.dmp

Filesize
7.9MB

Download
memory/2028-91-0x0000000071670000-0x0000000072080000-memory.dmp

Filesize
10.1MB

Download
memory/2028-90-0x0000000072080000-0x000000007340F000-memory.dmp

Filesize
19.6MB

Download
memory/2028-95-0x0000000070010000-0x000000007074E000-memory.dmp

Filesize
7.2MB

Download