arkei | 28455b1a0b29240e95877cff96528b3a196f0cf3a63d9980dc70349cdc0e1e74

General

Target

ghjk.exe
Size

1004KB
MD5

08802514f3c2c303d54e4a47a8db54f2
SHA1

ebe7c3ac64ce312ca370bcd07d49de5ad1369d93
SHA256

28455b1a0b29240e95877cff96528b3a196f0cf3a63d9980dc70349cdc0e1e74
SHA512

1ce0f58fa1f50debdff44222b70a4870b7ddb76a21f32d78ccecc2315bf005813bfb37032629e4360a928c61479b72237ac792e904b8c34fc089f73d5721f191

Score

10^/10

arkei raccoon 8a4fd4b44997ba634230ba5c422ca9f2 default discovery spyware stealer

Malware Config

Extracted

Family

arkei

Botnet

Default

Extracted

Family

raccoon

Botnet

8a4fd4b44997ba634230ba5c422ca9f2

C2

http://193.106.191.146/

http://185.215.113.89/

rc4.plain

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 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3276-142-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral2/memory/3276-143-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon

Executes dropped EXE 2 IoCs

Processes:

nfdsame.exenfdsame.exe

pid process

1452 nfdsame.exe
4452 nfdsame.exe

pid	process
1452	nfdsame.exe
4452	nfdsame.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

Processes:

ghjk.exenfdsame.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	ghjk.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	nfdsame.exe

Loads dropped DLL 2 IoCs

Processes:

nfdsame.exe

pid process

4452 nfdsame.exe
4452 nfdsame.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

pid	process
4452	nfdsame.exe
4452	nfdsame.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

nfdsame.exeghjk.exe

description	pid	process	target process
PID 1452 set thread context of 4452	1452	nfdsame.exe	nfdsame.exe
PID 2092 set thread context of 3276	2092	ghjk.exe	ghjk.exe

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

Processes:

nfdsame.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	nfdsame.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	nfdsame.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3900 timeout.exe
Modifies registry class 1 IoCs

Processes:

nfdsame.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000_Classes\Local Settings nfdsame.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

nfdsame.exeghjk.exe

pid process

1452 nfdsame.exe
2092 ghjk.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ghjk.exenfdsame.exe

pid process

2092 ghjk.exe
1452 nfdsame.exe

pid	process
3900	timeout.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000_Classes\Local Settings	nfdsame.exe

pid	process
1452	nfdsame.exe
2092	ghjk.exe

pid	process
2092	ghjk.exe
1452	nfdsame.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

ghjk.exenfdsame.exenfdsame.execmd.exe

description	pid	process	target process
PID 2092 wrote to memory of 1452	2092	ghjk.exe	nfdsame.exe
PID 2092 wrote to memory of 1452	2092	ghjk.exe	nfdsame.exe
PID 2092 wrote to memory of 1452	2092	ghjk.exe	nfdsame.exe
PID 1452 wrote to memory of 4452	1452	nfdsame.exe	nfdsame.exe
PID 1452 wrote to memory of 4452	1452	nfdsame.exe	nfdsame.exe
PID 1452 wrote to memory of 4452	1452	nfdsame.exe	nfdsame.exe
PID 1452 wrote to memory of 4452	1452	nfdsame.exe	nfdsame.exe
PID 2092 wrote to memory of 3276	2092	ghjk.exe	ghjk.exe
PID 2092 wrote to memory of 3276	2092	ghjk.exe	ghjk.exe
PID 2092 wrote to memory of 3276	2092	ghjk.exe	ghjk.exe
PID 2092 wrote to memory of 3276	2092	ghjk.exe	ghjk.exe
PID 4452 wrote to memory of 4752	4452	nfdsame.exe	cmd.exe
PID 4452 wrote to memory of 4752	4452	nfdsame.exe	cmd.exe
PID 4452 wrote to memory of 4752	4452	nfdsame.exe	cmd.exe
PID 4752 wrote to memory of 3900	4752	cmd.exe	timeout.exe
PID 4752 wrote to memory of 3900	4752	cmd.exe	timeout.exe
PID 4752 wrote to memory of 3900	4752	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\ghjk.exe
"C:\Users\Admin\AppData\Local\Temp\ghjk.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2092

C:\Users\Admin\AppData\Local\Temp\nfdsame.exe
"C:\Users\Admin\AppData\Local\Temp\nfdsame.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1452

C:\Users\Admin\AppData\Local\Temp\nfdsame.exe
"C:\Users\Admin\AppData\Local\Temp\nfdsame.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4452

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\nfdsame.exe" & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:4752

C:\Windows\SysWOW64\timeout.exe
timeout /t 5
5⤵
- Delays execution with timeout.exe
PID:3900

C:\Users\Admin\AppData\Local\Temp\ghjk.exe
"C:\Users\Admin\AppData\Local\Temp\ghjk.exe"
2⤵
PID:3276

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2480

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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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

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C:\Users\Admin\AppData\Local\Temp\nfdsame.exe
Filesize
556KB

MD5
a98781c107b2ace080273819b6686301

SHA1
aec10de615dc75204d257ee743cdc0e0936e8bf9

SHA256
200b2ed6014cf60dbc87aa964adc53304c9731a0ec90122383781b03bfb1f97a

SHA512
cca490fe092d5b7215687daba47b8a79c54e3194af17e14200c544ce0cf24f5b9622611dd230e0111a59736961e836bb8b734bfadf893f3f1ebbf6ea0323f67a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nfdsame.exe
Filesize
556KB

MD5
a98781c107b2ace080273819b6686301

SHA1
aec10de615dc75204d257ee743cdc0e0936e8bf9

SHA256
200b2ed6014cf60dbc87aa964adc53304c9731a0ec90122383781b03bfb1f97a

SHA512
cca490fe092d5b7215687daba47b8a79c54e3194af17e14200c544ce0cf24f5b9622611dd230e0111a59736961e836bb8b734bfadf893f3f1ebbf6ea0323f67a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nfdsame.exe
Filesize
556KB

MD5
a98781c107b2ace080273819b6686301

SHA1
aec10de615dc75204d257ee743cdc0e0936e8bf9

SHA256
200b2ed6014cf60dbc87aa964adc53304c9731a0ec90122383781b03bfb1f97a

SHA512
cca490fe092d5b7215687daba47b8a79c54e3194af17e14200c544ce0cf24f5b9622611dd230e0111a59736961e836bb8b734bfadf893f3f1ebbf6ea0323f67a

Download Submit
memory/1452-132-0x0000000000000000-mapping.dmp

Download
memory/1452-137-0x0000000000670000-0x0000000000678000-memory.dmp

Filesize
32KB

Download
memory/3276-142-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3276-143-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3276-140-0x0000000000000000-mapping.dmp

Download
memory/3900-167-0x0000000000000000-mapping.dmp

Download
memory/4452-141-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/4452-144-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/4452-138-0x0000000000000000-mapping.dmp

Download
memory/4452-166-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/4752-165-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads