arkei | 28455b1a0b29240e95877cff96528b3a196f0cf3a63d9980dc70349cdc0e1e74

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2022 05:29

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General

Target

zxcv.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

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 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/208-141-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral2/memory/208-146-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral2/memory/208-160-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon

Downloads MZ/PE file
Executes dropped EXE 6 IoCs

Processes:

nfdsame.exenfdsame.exeRb1Y7b7k.exe87L5Fin4.exe738tIiu6.exe12LJdFmP.exe

pid process

3016 nfdsame.exe
1144 nfdsame.exe
2800 Rb1Y7b7k.exe
432 87L5Fin4.exe
5068 738tIiu6.exe
3336 12LJdFmP.exe

pid	process
3016	nfdsame.exe
1144	nfdsame.exe
2800	Rb1Y7b7k.exe
432	87L5Fin4.exe
5068	738tIiu6.exe
3336	12LJdFmP.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:

zxcv.exezxcv.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	zxcv.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	zxcv.exe

Loads dropped DLL 3 IoCs

Processes:

zxcv.exe

pid process

208 zxcv.exe
208 zxcv.exe
208 zxcv.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
208	zxcv.exe
208	zxcv.exe
208	zxcv.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

zxcv.exenfdsame.exe

description	pid	process	target process
PID 4220 set thread context of 208	4220	zxcv.exe	zxcv.exe
PID 3016 set thread context of 1144	3016	nfdsame.exe	nfdsame.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: MapViewOfSection 2 IoCs

Processes:

zxcv.exenfdsame.exe

pid process

4220 zxcv.exe
3016 nfdsame.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

zxcv.exenfdsame.exe

pid process

4220 zxcv.exe
3016 nfdsame.exe

pid	process
4220	zxcv.exe
3016	nfdsame.exe

pid	process
4220	zxcv.exe
3016	nfdsame.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

zxcv.exenfdsame.exezxcv.exe

description	pid	process	target process
PID 4220 wrote to memory of 3016	4220	zxcv.exe	nfdsame.exe
PID 4220 wrote to memory of 3016	4220	zxcv.exe	nfdsame.exe
PID 4220 wrote to memory of 3016	4220	zxcv.exe	nfdsame.exe
PID 4220 wrote to memory of 208	4220	zxcv.exe	zxcv.exe
PID 4220 wrote to memory of 208	4220	zxcv.exe	zxcv.exe
PID 4220 wrote to memory of 208	4220	zxcv.exe	zxcv.exe
PID 4220 wrote to memory of 208	4220	zxcv.exe	zxcv.exe
PID 3016 wrote to memory of 1144	3016	nfdsame.exe	nfdsame.exe
PID 3016 wrote to memory of 1144	3016	nfdsame.exe	nfdsame.exe
PID 3016 wrote to memory of 1144	3016	nfdsame.exe	nfdsame.exe
PID 3016 wrote to memory of 1144	3016	nfdsame.exe	nfdsame.exe
PID 208 wrote to memory of 2800	208	zxcv.exe	Rb1Y7b7k.exe
PID 208 wrote to memory of 2800	208	zxcv.exe	Rb1Y7b7k.exe
PID 208 wrote to memory of 2800	208	zxcv.exe	Rb1Y7b7k.exe
PID 208 wrote to memory of 432	208	zxcv.exe	87L5Fin4.exe
PID 208 wrote to memory of 432	208	zxcv.exe	87L5Fin4.exe
PID 208 wrote to memory of 5068	208	zxcv.exe	738tIiu6.exe
PID 208 wrote to memory of 5068	208	zxcv.exe	738tIiu6.exe
PID 208 wrote to memory of 5068	208	zxcv.exe	738tIiu6.exe
PID 208 wrote to memory of 3336	208	zxcv.exe	12LJdFmP.exe
PID 208 wrote to memory of 3336	208	zxcv.exe	12LJdFmP.exe
PID 208 wrote to memory of 3336	208	zxcv.exe	12LJdFmP.exe

C:\Users\Admin\AppData\Local\Temp\zxcv.exe
"C:\Users\Admin\AppData\Local\Temp\zxcv.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4220
- 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:3016
- - C:\Users\Admin\AppData\Local\Temp\nfdsame.exe
    "C:\Users\Admin\AppData\Local\Temp\nfdsame.exe"
    3⤵
    - Executes dropped EXE
    PID:1144
- C:\Users\Admin\AppData\Local\Temp\zxcv.exe
  "C:\Users\Admin\AppData\Local\Temp\zxcv.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:208
- - C:\Users\Admin\AppData\Local\Temp\Rb1Y7b7k.exe
    "C:\Users\Admin\AppData\Local\Temp\Rb1Y7b7k.exe"
    3⤵
    - Executes dropped EXE
    PID:2800
- - C:\Users\Admin\AppData\Local\Temp\87L5Fin4.exe
    "C:\Users\Admin\AppData\Local\Temp\87L5Fin4.exe"
    3⤵
    - Executes dropped EXE
    PID:432
- - C:\Users\Admin\AppData\Local\Temp\738tIiu6.exe
    "C:\Users\Admin\AppData\Local\Temp\738tIiu6.exe"
    3⤵
    - Executes dropped EXE
    PID:5068
- - C:\Users\Admin\AppData\Local\Temp\12LJdFmP.exe
    "C:\Users\Admin\AppData\Local\Temp\12LJdFmP.exe"
    3⤵
    - Executes dropped EXE
    PID:3336

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\LocalLow\mozglue.dll

Filesize
612KB

MD5
f07d9977430e762b563eaadc2b94bbfa

SHA1
da0a05b2b8d269fb73558dfcf0ed5c167f6d3877

SHA256
4191faf7e5eb105a0f4c5c6ed3e9e9c71014e8aa39bbee313bc92d1411e9e862

SHA512
6afd512e4099643bba3fc7700dd72744156b78b7bda10263ba1f8571d1e282133a433215a9222a7799f9824f244a2bc80c2816a62de1497017a4b26d562b7eaf

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

Filesize
1.9MB

MD5
f67d08e8c02574cbc2f1122c53bfb976

SHA1
6522992957e7e4d074947cad63189f308a80fcf2

SHA256
c65b7afb05ee2b2687e6280594019068c3d3829182dfe8604ce4adf2116cc46e

SHA512
2e9d0a211d2b085514f181852fae6e7ca6aed4d29f396348bedb59c556e39621810a9a74671566a49e126ec73a60d0f781fa9085eb407df1eefd942c18853be5

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

Filesize
1.0MB

MD5
dbf4f8dcefb8056dc6bae4b67ff810ce

SHA1
bbac1dd8a07c6069415c04b62747d794736d0689

SHA256
47b64311719000fa8c432165a0fdcdfed735d5b54977b052de915b1cbbbf9d68

SHA512
b572ca2f2e4a5cc93e4fcc7a18c0ae6df888aa4c55bc7da591e316927a4b5cfcbdda6e60018950be891ff3b26f470cc5cce34d217c2d35074322ab84c32a25d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\12LJdFmP.exe

Filesize
480KB

MD5
4841f41452ae6adfbfdcaa30e253261f

SHA1
5a51f6bddb0e890a710fe8c13017e8902e7123fd

SHA256
5d97621e71741cf4e2b90ebd16281ddb2c1fe806b3c4e6be5aef738cdf79089b

SHA512
220bca133859810728fc6d2df5ad8f789e4e1138ca76d51c809474ca721259863cbb9b81435fd9e9379a61f615816607eaa9414349625762a02ce60271444e1d

Download Submit
C:\Users\Admin\AppData\Local\Temp\12LJdFmP.exe

Filesize
480KB

MD5
4841f41452ae6adfbfdcaa30e253261f

SHA1
5a51f6bddb0e890a710fe8c13017e8902e7123fd

SHA256
5d97621e71741cf4e2b90ebd16281ddb2c1fe806b3c4e6be5aef738cdf79089b

SHA512
220bca133859810728fc6d2df5ad8f789e4e1138ca76d51c809474ca721259863cbb9b81435fd9e9379a61f615816607eaa9414349625762a02ce60271444e1d

Download Submit
C:\Users\Admin\AppData\Local\Temp\738tIiu6.exe

Filesize
230KB

MD5
af8e56a6c76165480e5755705fbf122f

SHA1
c46407d621a01ae59dc85b88308b58713147ce9e

SHA256
8dbdd7a4e41a4a0d30af17b412ad41c04cad728eddc9c4d4cb89b2522f3f8df6

SHA512
bf4a071c523e573a2ab523d649ee31f383a7f9b2a483bfe30de9d79cb334752e412007de7ecd51d2fb0b44f363ba48829ce18c1a9c551dcb5465265d1e49467c

Download Submit
C:\Users\Admin\AppData\Local\Temp\738tIiu6.exe

Filesize
230KB

MD5
af8e56a6c76165480e5755705fbf122f

SHA1
c46407d621a01ae59dc85b88308b58713147ce9e

SHA256
8dbdd7a4e41a4a0d30af17b412ad41c04cad728eddc9c4d4cb89b2522f3f8df6

SHA512
bf4a071c523e573a2ab523d649ee31f383a7f9b2a483bfe30de9d79cb334752e412007de7ecd51d2fb0b44f363ba48829ce18c1a9c551dcb5465265d1e49467c

Download Submit
C:\Users\Admin\AppData\Local\Temp\87L5Fin4.exe

Filesize
693KB

MD5
3939c4fed7a0eaf5a6788c5e76ad6a78

SHA1
5a9395e128b488d3f7d3ec66b6522ea9e696a67a

SHA256
ea55619edf8fbf29000be3591014bcf5388b1fd63b2563d18a7d00b834e17ad1

SHA512
32b5c5deb6da30316ef8238b9d42182c978c6c07bad2ae174d5a007f9c1692941a04c17e3bf58d2e95f1b1d0c4ae3dd6e1a381c620767ed81f810418df4ee435

Download Submit
C:\Users\Admin\AppData\Local\Temp\87L5Fin4.exe

Filesize
693KB

MD5
3939c4fed7a0eaf5a6788c5e76ad6a78

SHA1
5a9395e128b488d3f7d3ec66b6522ea9e696a67a

SHA256
ea55619edf8fbf29000be3591014bcf5388b1fd63b2563d18a7d00b834e17ad1

SHA512
32b5c5deb6da30316ef8238b9d42182c978c6c07bad2ae174d5a007f9c1692941a04c17e3bf58d2e95f1b1d0c4ae3dd6e1a381c620767ed81f810418df4ee435

Download Submit
C:\Users\Admin\AppData\Local\Temp\Rb1Y7b7k.exe

Filesize
283KB

MD5
438cbbc5449ace7dc2f23c8f884a51e5

SHA1
e485f4b2797c6e3cb66c0fdcf388a4373b5dc495

SHA256
c56d7650cb69a9ecc1cb26d4324a0708ae5eea20e640b33e32bbcb45b58c0703

SHA512
2c92aea2256975d7eaf2f0c35622a41dfd189961f4fc5f302ec6133cd6aa8e6ab80d089e594afa51fc71c3d7bff4737e8ebafbd7c2c6327d73cd1682f1b6afb2

Download Submit
C:\Users\Admin\AppData\Local\Temp\Rb1Y7b7k.exe

Filesize
283KB

MD5
438cbbc5449ace7dc2f23c8f884a51e5

SHA1
e485f4b2797c6e3cb66c0fdcf388a4373b5dc495

SHA256
c56d7650cb69a9ecc1cb26d4324a0708ae5eea20e640b33e32bbcb45b58c0703

SHA512
2c92aea2256975d7eaf2f0c35622a41dfd189961f4fc5f302ec6133cd6aa8e6ab80d089e594afa51fc71c3d7bff4737e8ebafbd7c2c6327d73cd1682f1b6afb2

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
C:\Users\Admin\AppData\Local\Temp\nfdsame.exe

Filesize
556KB

MD5
a98781c107b2ace080273819b6686301

SHA1
aec10de615dc75204d257ee743cdc0e0936e8bf9

SHA256
200b2ed6014cf60dbc87aa964adc53304c9731a0ec90122383781b03bfb1f97a

SHA512
cca490fe092d5b7215687daba47b8a79c54e3194af17e14200c544ce0cf24f5b9622611dd230e0111a59736961e836bb8b734bfadf893f3f1ebbf6ea0323f67a

Download Submit
memory/208-138-0x0000000000000000-mapping.dmp

Download
memory/208-160-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/208-146-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/208-141-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/432-151-0x0000000000000000-mapping.dmp

Download
memory/432-154-0x000001405CA90000-0x000001405CB42000-memory.dmp

Filesize
712KB

Download
memory/1144-147-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1144-139-0x0000000000000000-mapping.dmp

Download
memory/1144-142-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2800-148-0x0000000000000000-mapping.dmp

Download
memory/3016-132-0x0000000000000000-mapping.dmp

Download
memory/3336-158-0x0000000000000000-mapping.dmp

Download
memory/4220-137-0x00000000029F0000-0x00000000029F8000-memory.dmp

Filesize
32KB

Download
memory/5068-155-0x0000000000000000-mapping.dmp

Download