arkei | d75d7b0534ff648f16f5751be79a2c23158b6412a780180aec78c77c7e95071d

Analysis

max time kernel
40s
max time network
45s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
31-07-2022 05:29

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General

Target

zxcvb.exe
Size

586KB
MD5

131a32033cf88976a8df48361b90207d
SHA1

ce260393460fa5d4cbfa17d3329fd33594810add
SHA256

d75d7b0534ff648f16f5751be79a2c23158b6412a780180aec78c77c7e95071d
SHA512

120a4ef120c7b2d4c07af7e6418eaf83d7f3d41ba13f41ce2e494f76182c4b07fd16ec2ceaf1937ba3e76ecb9149cc42edba315e818dad09882cf77a62f6c708

Score

10^/10

arkei raccoon 8a4fd4b44997ba634230ba5c422ca9f2 default spyware stealer

Malware Config

Extracted

Family

raccoon

Botnet

8a4fd4b44997ba634230ba5c422ca9f2

http://193.106.191.146/

http://185.215.113.89/

rc4.plain

Extracted

Family

arkei

Botnet

Default

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
Raccoon
Raccoon is an infostealer written in C++ and first seen in 2019.
stealer raccoon

Raccoon Stealer payload 6 IoCs

resource	yara_rule
behavioral1/memory/1740-71-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral1/memory/1740-70-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral1/memory/1740-74-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral1/memory/1740-75-0x0000000000406BEA-mapping.dmp	family_raccoon
behavioral1/memory/1740-79-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral1/memory/1740-91-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1328	Mccegjkqnoydj.exe

Loads dropped DLL 6 IoCs

pid	Process
1036	zxcvb.exe
1740	InstallUtil.exe
1740	InstallUtil.exe
1740	InstallUtil.exe
1856	InstallUtil.exe
1856	InstallUtil.exe

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

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1036 set thread context of 1740	1036	zxcvb.exe	30
PID 1328 set thread context of 1856	1328	Mccegjkqnoydj.exe	32

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1196	1740	WerFault.exe	30

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1376	timeout.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1036	zxcvb.exe
1036	zxcvb.exe
1036	zxcvb.exe
1328	Mccegjkqnoydj.exe
1328	Mccegjkqnoydj.exe
1328	Mccegjkqnoydj.exe
1328	Mccegjkqnoydj.exe
1328	Mccegjkqnoydj.exe
1328	Mccegjkqnoydj.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1036	zxcvb.exe
Token: SeDebugPrivilege	1328	Mccegjkqnoydj.exe

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 1036 wrote to memory of 1328	1036	zxcvb.exe	28
PID 1036 wrote to memory of 1328	1036	zxcvb.exe	28
PID 1036 wrote to memory of 1328	1036	zxcvb.exe	28
PID 1036 wrote to memory of 1328	1036	zxcvb.exe	28
PID 1036 wrote to memory of 828	1036	zxcvb.exe	29
PID 1036 wrote to memory of 828	1036	zxcvb.exe	29
PID 1036 wrote to memory of 828	1036	zxcvb.exe	29
PID 1036 wrote to memory of 828	1036	zxcvb.exe	29
PID 1036 wrote to memory of 828	1036	zxcvb.exe	29
PID 1036 wrote to memory of 828	1036	zxcvb.exe	29
PID 1036 wrote to memory of 828	1036	zxcvb.exe	29
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1328 wrote to memory of 2028	1328	Mccegjkqnoydj.exe	31
PID 1328 wrote to memory of 2028	1328	Mccegjkqnoydj.exe	31
PID 1328 wrote to memory of 2028	1328	Mccegjkqnoydj.exe	31
PID 1328 wrote to memory of 2028	1328	Mccegjkqnoydj.exe	31
PID 1328 wrote to memory of 2028	1328	Mccegjkqnoydj.exe	31
PID 1328 wrote to memory of 2028	1328	Mccegjkqnoydj.exe	31
PID 1328 wrote to memory of 2028	1328	Mccegjkqnoydj.exe	31
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1036 wrote to memory of 1740	1036	zxcvb.exe	30
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1328 wrote to memory of 1856	1328	Mccegjkqnoydj.exe	32
PID 1856 wrote to memory of 1684	1856	InstallUtil.exe	35
PID 1856 wrote to memory of 1684	1856	InstallUtil.exe	35
PID 1856 wrote to memory of 1684	1856	InstallUtil.exe	35
PID 1856 wrote to memory of 1684	1856	InstallUtil.exe	35
PID 1684 wrote to memory of 1376	1684	cmd.exe	37
PID 1684 wrote to memory of 1376	1684	cmd.exe	37
PID 1684 wrote to memory of 1376	1684	cmd.exe	37
PID 1684 wrote to memory of 1376	1684	cmd.exe	37
PID 1740 wrote to memory of 1196	1740	InstallUtil.exe	38
PID 1740 wrote to memory of 1196	1740	InstallUtil.exe	38
PID 1740 wrote to memory of 1196	1740	InstallUtil.exe	38
PID 1740 wrote to memory of 1196	1740	InstallUtil.exe	38

C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
"C:\Users\Admin\AppData\Local\Temp\zxcvb.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1036
- C:\Users\Admin\AppData\Local\Temp\Mccegjkqnoydj.exe
  "C:\Users\Admin\AppData\Local\Temp\Mccegjkqnoydj.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1328
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    3⤵
    PID:2028
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    3⤵
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious use of WriteProcessMemory
    PID:1856
  - - 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\InstallUtil.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1684
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:1376
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:828
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 772
    3⤵
    - Program crash
    PID:1196

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\Mccegjkqnoydj.exe

Filesize
341KB

MD5
e96634c20057c1643a303d6266321035

SHA1
5f074a2f48911fa04995ab2bad95f6e66f228ebe

SHA256
58ca86e49e4dea36ec81072c6e63fb8d6b465447d3c1fc1443d15e897c13d27c

SHA512
0d927b650ef8029636681a4ba16637bda30336756586038818c0b75c2fddba0d83b6e4a51ece8a8c05a4deb13dc93e5bd23ae36024349a901c27909144725ebb

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

Filesize
341KB

MD5
e96634c20057c1643a303d6266321035

SHA1
5f074a2f48911fa04995ab2bad95f6e66f228ebe

SHA256
58ca86e49e4dea36ec81072c6e63fb8d6b465447d3c1fc1443d15e897c13d27c

SHA512
0d927b650ef8029636681a4ba16637bda30336756586038818c0b75c2fddba0d83b6e4a51ece8a8c05a4deb13dc93e5bd23ae36024349a901c27909144725ebb

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\LocalLow\mozglue.dll

Filesize
612KB

MD5
f07d9977430e762b563eaadc2b94bbfa

SHA1
da0a05b2b8d269fb73558dfcf0ed5c167f6d3877

SHA256
4191faf7e5eb105a0f4c5c6ed3e9e9c71014e8aa39bbee313bc92d1411e9e862

SHA512
6afd512e4099643bba3fc7700dd72744156b78b7bda10263ba1f8571d1e282133a433215a9222a7799f9824f244a2bc80c2816a62de1497017a4b26d562b7eaf

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

Filesize
1.9MB

MD5
f67d08e8c02574cbc2f1122c53bfb976

SHA1
6522992957e7e4d074947cad63189f308a80fcf2

SHA256
c65b7afb05ee2b2687e6280594019068c3d3829182dfe8604ce4adf2116cc46e

SHA512
2e9d0a211d2b085514f181852fae6e7ca6aed4d29f396348bedb59c556e39621810a9a74671566a49e126ec73a60d0f781fa9085eb407df1eefd942c18853be5

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

Filesize
1.0MB

MD5
dbf4f8dcefb8056dc6bae4b67ff810ce

SHA1
bbac1dd8a07c6069415c04b62747d794736d0689

SHA256
47b64311719000fa8c432165a0fdcdfed735d5b54977b052de915b1cbbbf9d68

SHA512
b572ca2f2e4a5cc93e4fcc7a18c0ae6df888aa4c55bc7da591e316927a4b5cfcbdda6e60018950be891ff3b26f470cc5cce34d217c2d35074322ab84c32a25d1

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

Filesize
341KB

MD5
e96634c20057c1643a303d6266321035

SHA1
5f074a2f48911fa04995ab2bad95f6e66f228ebe

SHA256
58ca86e49e4dea36ec81072c6e63fb8d6b465447d3c1fc1443d15e897c13d27c

SHA512
0d927b650ef8029636681a4ba16637bda30336756586038818c0b75c2fddba0d83b6e4a51ece8a8c05a4deb13dc93e5bd23ae36024349a901c27909144725ebb

Download Submit
memory/1036-54-0x0000000000AD0000-0x0000000000B68000-memory.dmp

Filesize
608KB

Download
memory/1036-57-0x0000000001FD0000-0x000000000201C000-memory.dmp

Filesize
304KB

Download
memory/1036-56-0x0000000004240000-0x00000000042E4000-memory.dmp

Filesize
656KB

Download
memory/1036-55-0x0000000075DC1000-0x0000000075DC3000-memory.dmp

Filesize
8KB

Download
memory/1328-62-0x0000000000120000-0x000000000017C000-memory.dmp

Filesize
368KB

Download
memory/1328-64-0x0000000000670000-0x00000000006D6000-memory.dmp

Filesize
408KB

Download
memory/1740-91-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1740-66-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1740-71-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1740-70-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1740-68-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1740-79-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1740-65-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1740-74-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1856-76-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-92-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-90-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-73-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-97-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1856-87-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-86-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-119-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-84-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-83-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1856-80-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download