arkei | d75d7b0534ff648f16f5751be79a2c23158b6412a780180aec78c77c7e95071d

General

Target

asdfg.exe
Size

586KB
MD5

131a32033cf88976a8df48361b90207d
SHA1

ce260393460fa5d4cbfa17d3329fd33594810add
SHA256

d75d7b0534ff648f16f5751be79a2c23158b6412a780180aec78c77c7e95071d
SHA512

120a4ef120c7b2d4c07af7e6418eaf83d7f3d41ba13f41ce2e494f76182c4b07fd16ec2ceaf1937ba3e76ecb9149cc42edba315e818dad09882cf77a62f6c708

Score

10^/10

arkei raccoon 8a4fd4b44997ba634230ba5c422ca9f2 default stealer

Malware Config

Extracted

Family

raccoon

Botnet

8a4fd4b44997ba634230ba5c422ca9f2

C2

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 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1860-141-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral2/memory/1860-143-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral2/memory/1860-149-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon

Executes dropped EXE 1 IoCs

Processes:

Mccegjkqnoydj.exe

pid process

4956 Mccegjkqnoydj.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

asdfg.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation asdfg.exe
Loads dropped DLL 2 IoCs

Processes:

InstallUtil.exe

pid process

1184 InstallUtil.exe
1184 InstallUtil.exe

pid	process
4956	Mccegjkqnoydj.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	asdfg.exe

pid	process
1184	InstallUtil.exe
1184	InstallUtil.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

asdfg.exeMccegjkqnoydj.exe

description	pid	process	target process
PID 4336 set thread context of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4956 set thread context of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe

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

Processes:

WerFault.exe

pid pid_target process target process

4068 1184 WerFault.exe InstallUtil.exe

pid	pid_target	process	target process
4068	1184	WerFault.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

asdfg.exeMccegjkqnoydj.exe

pid	process
4336	asdfg.exe
4336	asdfg.exe
4336	asdfg.exe
4336	asdfg.exe
4336	asdfg.exe
4336	asdfg.exe
4336	asdfg.exe
4336	asdfg.exe
4336	asdfg.exe
4336	asdfg.exe
4956	Mccegjkqnoydj.exe
4956	Mccegjkqnoydj.exe
4956	Mccegjkqnoydj.exe
4956	Mccegjkqnoydj.exe
4956	Mccegjkqnoydj.exe
4956	Mccegjkqnoydj.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

asdfg.exeMccegjkqnoydj.exe

description pid process

Token: SeDebugPrivilege 4336 asdfg.exe
Token: SeDebugPrivilege 4956 Mccegjkqnoydj.exe

description	pid	process
Token: SeDebugPrivilege	4336	asdfg.exe
Token: SeDebugPrivilege	4956	Mccegjkqnoydj.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

asdfg.exeMccegjkqnoydj.exe

description	pid	process	target process
PID 4336 wrote to memory of 4956	4336	asdfg.exe	Mccegjkqnoydj.exe
PID 4336 wrote to memory of 4956	4336	asdfg.exe	Mccegjkqnoydj.exe
PID 4336 wrote to memory of 4956	4336	asdfg.exe	Mccegjkqnoydj.exe
PID 4336 wrote to memory of 1404	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1404	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1404	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 4236	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 4236	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 4236	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4336 wrote to memory of 1860	4336	asdfg.exe	InstallUtil.exe
PID 4956 wrote to memory of 3224	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 3224	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 3224	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe
PID 4956 wrote to memory of 1184	4956	Mccegjkqnoydj.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\asdfg.exe
"C:\Users\Admin\AppData\Local\Temp\asdfg.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4336

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:4956

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
PID:3224

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
- Loads dropped DLL
PID:1184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 1284
4⤵
- Program crash
PID:4068

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:1404

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:4236

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1184 -ip 1184
1⤵
PID:1440

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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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\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
memory/1184-146-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1184-148-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1184-172-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1184-151-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1184-150-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1184-145-0x0000000000000000-mapping.dmp

Download
memory/1404-138-0x0000000000000000-mapping.dmp

Download
memory/1860-140-0x0000000000000000-mapping.dmp

Download
memory/1860-141-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1860-143-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1860-149-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3224-144-0x0000000000000000-mapping.dmp

Download
memory/4236-139-0x0000000000000000-mapping.dmp

Download
memory/4336-130-0x00000000008E0000-0x0000000000978000-memory.dmp

Filesize
608KB

Download
memory/4336-132-0x0000000005320000-0x00000000053B2000-memory.dmp

Filesize
584KB

Download
memory/4336-131-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download
memory/4336-133-0x00000000053C0000-0x00000000053CA000-memory.dmp

Filesize
40KB

Download
memory/4956-134-0x0000000000000000-mapping.dmp

Download
memory/4956-137-0x0000000000AE0000-0x0000000000B3C000-memory.dmp

Filesize
368KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads