arkei | 237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85

General

Target
237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe
Size 5.0MB
Sample220119-t3b45abecp
SHA256 237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85
MD5 1b010600ba6e9288ba1de8456a1d9261
SHA1 24a7a32d9d4944fc2e9bc89867ef682ffe4b6e5d
SHA512 9ae6b04515f566a52f5e5d17d2e573ca388a5c0ac3a110ff3e3fb8c8a9761af8058e3959f203c3aae6937084fc4a28027168782c462bf9da83c74103f794463a
MD5 SHA1 SHA512

Score

10^/10

arkei default stealer

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

http://185.215.113.39/7vlcKuayFx.php

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei

Arkei Stealer Payload 1 IoCs

stealer

resource	yara_rule
behavioral1/memory/1560-76-0x0000000000400000-0x0000000000BBD000-memory.dmp	family_arkei

Executes dropped EXE 3 IoCs

pid	Process
1884	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp
1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp
1560	evreporter.exe

Loads dropped DLL 5 IoCs

pid	Process
1720	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe
668	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe
1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp
1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp
1560	evreporter.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp
1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1884	1720	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	27
PID 1720 wrote to memory of 1884	1720	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	27
PID 1720 wrote to memory of 1884	1720	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	27
PID 1720 wrote to memory of 1884	1720	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	27
PID 1720 wrote to memory of 1884	1720	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	27
PID 1720 wrote to memory of 1884	1720	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	27
PID 1720 wrote to memory of 1884	1720	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	27
PID 1884 wrote to memory of 668	1884	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	28
PID 1884 wrote to memory of 668	1884	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	28
PID 1884 wrote to memory of 668	1884	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	28
PID 1884 wrote to memory of 668	1884	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	28
PID 1884 wrote to memory of 668	1884	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	28
PID 1884 wrote to memory of 668	1884	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	28
PID 1884 wrote to memory of 668	1884	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	28
PID 668 wrote to memory of 1204	668	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	29
PID 668 wrote to memory of 1204	668	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	29
PID 668 wrote to memory of 1204	668	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	29
PID 668 wrote to memory of 1204	668	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	29
PID 668 wrote to memory of 1204	668	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	29
PID 668 wrote to memory of 1204	668	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	29
PID 668 wrote to memory of 1204	668	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe	29
PID 1204 wrote to memory of 1560	1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	30
PID 1204 wrote to memory of 1560	1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	30
PID 1204 wrote to memory of 1560	1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	30
PID 1204 wrote to memory of 1560	1204	237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp	30

C:\Users\Admin\AppData\Local\Temp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe
"C:\Users\Admin\AppData\Local\Temp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\is-7922N.tmp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-7922N.tmp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp" /SL5="$40108,4382530,831488,C:\Users\Admin\AppData\Local\Temp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1884
- - C:\Users\Admin\AppData\Local\Temp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe
    "C:\Users\Admin\AppData\Local\Temp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe" /VERYSILENT
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:668
  - - C:\Users\Admin\AppData\Local\Temp\is-BG7B6.tmp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-BG7B6.tmp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.tmp" /SL5="$50108,4382530,831488,C:\Users\Admin\AppData\Local\Temp\237bc833db8c72cedf0a09bd642567aa31cc74dd6bcfe5b67871f375d617ec85.exe" /VERYSILENT
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of FindShellTrayWindow
      Suspicious use of WriteProcessMemory
      PID:1204
    - - C:\Users\Admin\AppData\Roaming\Ev Reports Management\evreporter.exe
        
        "C:\Users\Admin\AppData\Roaming\Ev Reports Management\evreporter.exe"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        
        PID:1560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/668-62-0x0000000000400000-0x00000000004D8000-memory.dmp

Download

memory/1204-67-0x0000000000240000-0x0000000000241000-memory.dmp

Download

memory/1204-68-0x0000000074031000-0x0000000074033000-memory.dmp

Download

memory/1560-76-0x0000000000400000-0x0000000000BBD000-memory.dmp

Download

memory/1720-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

Download

memory/1720-55-0x0000000000400000-0x00000000004D8000-memory.dmp

Download

memory/1884-60-0x0000000000240000-0x0000000000241000-memory.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads