arkei | df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731

Analysis

max time kernel
152s
max time network
169s
platform
windows7_x64
resource
win7-20220414-en
submitted
12/05/2022, 07:51

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General

Target

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
Size

100KB
MD5

c7a310982da68b10360854f9cd78e718
SHA1

60140c28e0b7db797a771c2dee081fa3812246db
SHA256

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
SHA512

6747fa3f7637922eeaa0feeb25d430dc6ab66fd9f3d22e7e5fd16bad9b75528a8174c34a8baf681950b64e8cdaa6a14e37633592e843c363e75468622ebd2ec3

Score

10^/10

arkei default persistence 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 Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
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
384	azne.exe
1460	pm.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	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	pm.exe

Loads dropped DLL 10 IoCs

pid	Process
1656	MSBuild.exe
1656	MSBuild.exe
1656	MSBuild.exe
1656	MSBuild.exe
1656	MSBuild.exe
1656	MSBuild.exe
1656	MSBuild.exe
1656	MSBuild.exe
1656	MSBuild.exe
1656	MSBuild.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\Hjbjm = "\"C:\\Users\\Admin\\AppData\\Roaming\\Xegnrfbl\\Hjbjm.exe\""	pm.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1664 set thread context of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1460 set thread context of 1192	1460	pm.exe	38

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1712	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
1936	powershell.exe
1460	pm.exe
1460	pm.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
Token: SeDebugPrivilege	384	azne.exe
Token: SeDebugPrivilege	1460	pm.exe
Token: SeDebugPrivilege	1936	powershell.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1664 wrote to memory of 1656	1664	df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe	28
PID 1656 wrote to memory of 384	1656	MSBuild.exe	31
PID 1656 wrote to memory of 384	1656	MSBuild.exe	31
PID 1656 wrote to memory of 384	1656	MSBuild.exe	31
PID 1656 wrote to memory of 384	1656	MSBuild.exe	31
PID 1656 wrote to memory of 1460	1656	MSBuild.exe	32
PID 1656 wrote to memory of 1460	1656	MSBuild.exe	32
PID 1656 wrote to memory of 1460	1656	MSBuild.exe	32
PID 1656 wrote to memory of 1460	1656	MSBuild.exe	32
PID 1656 wrote to memory of 1992	1656	MSBuild.exe	33
PID 1656 wrote to memory of 1992	1656	MSBuild.exe	33
PID 1656 wrote to memory of 1992	1656	MSBuild.exe	33
PID 1656 wrote to memory of 1992	1656	MSBuild.exe	33
PID 1992 wrote to memory of 1712	1992	cmd.exe	35
PID 1992 wrote to memory of 1712	1992	cmd.exe	35
PID 1992 wrote to memory of 1712	1992	cmd.exe	35
PID 1992 wrote to memory of 1712	1992	cmd.exe	35
PID 1460 wrote to memory of 1936	1460	pm.exe	36
PID 1460 wrote to memory of 1936	1460	pm.exe	36
PID 1460 wrote to memory of 1936	1460	pm.exe	36
PID 1460 wrote to memory of 1192	1460	pm.exe	38
PID 1460 wrote to memory of 1192	1460	pm.exe	38
PID 1460 wrote to memory of 1192	1460	pm.exe	38
PID 1460 wrote to memory of 1192	1460	pm.exe	38
PID 1460 wrote to memory of 1192	1460	pm.exe	38
PID 1460 wrote to memory of 1192	1460	pm.exe	38
PID 1460 wrote to memory of 1192	1460	pm.exe	38

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:1664
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Users\Admin\AppData\Roaming\azne.exe
    "C:\Users\Admin\AppData\Roaming\azne.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:384
- - C:\Users\Admin\AppData\Roaming\pm.exe
    "C:\Users\Admin\AppData\Roaming\pm.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1460
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgACcAQwA6AFwAJwAsACcAQwA6AFwAVQBzAGUAcgBzAFwAQQBkAG0AaQBuAFwAQQBwAHAARABhAHQAYQBcAFIAbwBhAG0AaQBuAGcAXABYAGUAZwBuAHIAZgBiAGwAXABIAGoAYgBqAG0ALgBlAHgAZQAnAA==
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1936
  - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
      4⤵
      PID:1192
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1992
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:1712

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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

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Downloads

C:\Users\Admin\AppData\Roaming\azne.exe

Filesize
100KB

MD5
683600b61a32d3eb2cd44cb34fdf7ab3

SHA1
e8bdd864c2610495850bf525cd1529c66c0b0b53

SHA256
26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

SHA512
5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

Download Submit
C:\Users\Admin\AppData\Roaming\azne.exe

Filesize
100KB

MD5
683600b61a32d3eb2cd44cb34fdf7ab3

SHA1
e8bdd864c2610495850bf525cd1529c66c0b0b53

SHA256
26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

SHA512
5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

Download Submit
C:\Users\Admin\AppData\Roaming\pm.exe

Filesize
1.9MB

MD5
22e6d862d6f51b6283b60badf02b6f81

SHA1
11920f1bf418f67cdbef320aa1afee596ef27537

SHA256
dac5f2e7bcabc924576254aed4a53b112bb19ca9869dfbc7b427765746374d33

SHA512
ed639b7111810e76d5f0b737165e57a306e948ad05ade8687af9575f38968d238f0e2056ead7d7f2ab545ace3ca58b13baf0c5dcb8a2ed9428b3e06b6a42016a

Download Submit
C:\Users\Admin\AppData\Roaming\pm.exe

Filesize
1.9MB

MD5
22e6d862d6f51b6283b60badf02b6f81

SHA1
11920f1bf418f67cdbef320aa1afee596ef27537

SHA256
dac5f2e7bcabc924576254aed4a53b112bb19ca9869dfbc7b427765746374d33

SHA512
ed639b7111810e76d5f0b737165e57a306e948ad05ade8687af9575f38968d238f0e2056ead7d7f2ab545ace3ca58b13baf0c5dcb8a2ed9428b3e06b6a42016a

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\Roaming\azne.exe

Filesize
100KB

MD5
683600b61a32d3eb2cd44cb34fdf7ab3

SHA1
e8bdd864c2610495850bf525cd1529c66c0b0b53

SHA256
26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

SHA512
5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

Download Submit
\Users\Admin\AppData\Roaming\azne.exe

Filesize
100KB

MD5
683600b61a32d3eb2cd44cb34fdf7ab3

SHA1
e8bdd864c2610495850bf525cd1529c66c0b0b53

SHA256
26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

SHA512
5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

Download Submit
\Users\Admin\AppData\Roaming\azne.exe

Filesize
100KB

MD5
683600b61a32d3eb2cd44cb34fdf7ab3

SHA1
e8bdd864c2610495850bf525cd1529c66c0b0b53

SHA256
26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

SHA512
5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

Download Submit
\Users\Admin\AppData\Roaming\azne.exe

Filesize
100KB

MD5
683600b61a32d3eb2cd44cb34fdf7ab3

SHA1
e8bdd864c2610495850bf525cd1529c66c0b0b53

SHA256
26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

SHA512
5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

Download Submit
\Users\Admin\AppData\Roaming\pm.exe

Filesize
1.9MB

MD5
22e6d862d6f51b6283b60badf02b6f81

SHA1
11920f1bf418f67cdbef320aa1afee596ef27537

SHA256
dac5f2e7bcabc924576254aed4a53b112bb19ca9869dfbc7b427765746374d33

SHA512
ed639b7111810e76d5f0b737165e57a306e948ad05ade8687af9575f38968d238f0e2056ead7d7f2ab545ace3ca58b13baf0c5dcb8a2ed9428b3e06b6a42016a

Download Submit
\Users\Admin\AppData\Roaming\pm.exe

Filesize
1.9MB

MD5
22e6d862d6f51b6283b60badf02b6f81

SHA1
11920f1bf418f67cdbef320aa1afee596ef27537

SHA256
dac5f2e7bcabc924576254aed4a53b112bb19ca9869dfbc7b427765746374d33

SHA512
ed639b7111810e76d5f0b737165e57a306e948ad05ade8687af9575f38968d238f0e2056ead7d7f2ab545ace3ca58b13baf0c5dcb8a2ed9428b3e06b6a42016a

Download Submit
\Users\Admin\AppData\Roaming\pm.exe

Filesize
1.9MB

MD5
22e6d862d6f51b6283b60badf02b6f81

SHA1
11920f1bf418f67cdbef320aa1afee596ef27537

SHA256
dac5f2e7bcabc924576254aed4a53b112bb19ca9869dfbc7b427765746374d33

SHA512
ed639b7111810e76d5f0b737165e57a306e948ad05ade8687af9575f38968d238f0e2056ead7d7f2ab545ace3ca58b13baf0c5dcb8a2ed9428b3e06b6a42016a

Download Submit
\Users\Admin\AppData\Roaming\pm.exe

Filesize
1.9MB

MD5
22e6d862d6f51b6283b60badf02b6f81

SHA1
11920f1bf418f67cdbef320aa1afee596ef27537

SHA256
dac5f2e7bcabc924576254aed4a53b112bb19ca9869dfbc7b427765746374d33

SHA512
ed639b7111810e76d5f0b737165e57a306e948ad05ade8687af9575f38968d238f0e2056ead7d7f2ab545ace3ca58b13baf0c5dcb8a2ed9428b3e06b6a42016a

Download Submit
memory/384-101-0x0000000000B50000-0x0000000000B6E000-memory.dmp

Filesize
120KB

Download
memory/1192-122-0x0000000140000000-0x000000014007A000-memory.dmp

Filesize
488KB

Download
memory/1192-121-0x0000000140000000-0x000000014007A000-memory.dmp

Filesize
488KB

Download
memory/1192-124-0x0000000140000000-0x000000014007A000-memory.dmp

Filesize
488KB

Download
memory/1192-126-0x0000000140000000-0x000000014007A000-memory.dmp

Filesize
488KB

Download
memory/1192-130-0x0000000000800000-0x00000000008A6000-memory.dmp

Filesize
664KB

Download
memory/1192-131-0x0000000002330000-0x000000000237E000-memory.dmp

Filesize
312KB

Download
memory/1460-112-0x000000001B6F0000-0x000000001B8BE000-memory.dmp

Filesize
1.8MB

Download
memory/1460-118-0x000000001B3E6000-0x000000001B405000-memory.dmp

Filesize
124KB

Download
memory/1460-120-0x000000001AB00000-0x000000001AB9E000-memory.dmp

Filesize
632KB

Download
memory/1460-110-0x00000000002D0000-0x00000000004B6000-memory.dmp

Filesize
1.9MB

Download
memory/1460-111-0x000007FEFBAA1000-0x000007FEFBAA3000-memory.dmp

Filesize
8KB

Download
memory/1656-70-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1656-63-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1656-71-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1656-58-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1656-67-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1656-59-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1656-61-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1656-73-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1656-64-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1656-66-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1664-54-0x0000000000C30000-0x0000000000C4E000-memory.dmp

Filesize
120KB

Download
memory/1664-57-0x0000000004850000-0x0000000004898000-memory.dmp

Filesize
288KB

Download
memory/1664-56-0x00000000087C0000-0x0000000008924000-memory.dmp

Filesize
1.4MB

Download
memory/1664-55-0x0000000075941000-0x0000000075943000-memory.dmp

Filesize
8KB

Download
memory/1936-119-0x0000000002220000-0x00000000022A0000-memory.dmp

Filesize
512KB

Download
memory/1936-117-0x000007FEEAE80000-0x000007FEEB9DD000-memory.dmp

Filesize
11.4MB

Download