arkei | 28455b1a0b29240e95877cff96528b3a196f0cf3a63d9980dc70349cdc0e1e74

Analysis

max time kernel
43s
max time network
64s
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

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
behavioral1/memory/1744-67-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral1/memory/1744-73-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon
behavioral1/memory/1744-103-0x0000000000400000-0x0000000000411000-memory.dmp	family_raccoon

Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

nfdsame.exenfdsame.exe

pid process

2016 nfdsame.exe
1728 nfdsame.exe
Loads dropped DLL 8 IoCs

Processes:

zxcv.exenfdsame.exezxcv.exenfdsame.exe

pid process

1092 zxcv.exe
1092 zxcv.exe
2016 nfdsame.exe
1744 zxcv.exe
1744 zxcv.exe
1744 zxcv.exe
1728 nfdsame.exe
1728 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
2016	nfdsame.exe
1728	nfdsame.exe

pid	process
1092	zxcv.exe
1092	zxcv.exe
2016	nfdsame.exe
1744	zxcv.exe
1744	zxcv.exe
1744	zxcv.exe
1728	nfdsame.exe
1728	nfdsame.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

zxcv.exenfdsame.exe

description	pid	process	target process
PID 1092 set thread context of 1744	1092	zxcv.exe	zxcv.exe
PID 2016 set thread context of 1728	2016	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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1932 1744 WerFault.exe zxcv.exe

pid	pid_target	process	target process
1932	1744	WerFault.exe	zxcv.exe

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

1632 timeout.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

zxcv.exenfdsame.exe

pid process

1092 zxcv.exe
2016 nfdsame.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

zxcv.exenfdsame.exe

pid process

1092 zxcv.exe
2016 nfdsame.exe

pid	process
1632	timeout.exe

pid	process
1092	zxcv.exe
2016	nfdsame.exe

pid	process
1092	zxcv.exe
2016	nfdsame.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

zxcv.exenfdsame.exenfdsame.execmd.exe

description	pid	process	target process
PID 1092 wrote to memory of 2016	1092	zxcv.exe	nfdsame.exe
PID 1092 wrote to memory of 2016	1092	zxcv.exe	nfdsame.exe
PID 1092 wrote to memory of 2016	1092	zxcv.exe	nfdsame.exe
PID 1092 wrote to memory of 2016	1092	zxcv.exe	nfdsame.exe
PID 1092 wrote to memory of 1744	1092	zxcv.exe	zxcv.exe
PID 1092 wrote to memory of 1744	1092	zxcv.exe	zxcv.exe
PID 1092 wrote to memory of 1744	1092	zxcv.exe	zxcv.exe
PID 1092 wrote to memory of 1744	1092	zxcv.exe	zxcv.exe
PID 1092 wrote to memory of 1744	1092	zxcv.exe	zxcv.exe
PID 2016 wrote to memory of 1728	2016	nfdsame.exe	nfdsame.exe
PID 2016 wrote to memory of 1728	2016	nfdsame.exe	nfdsame.exe
PID 2016 wrote to memory of 1728	2016	nfdsame.exe	nfdsame.exe
PID 2016 wrote to memory of 1728	2016	nfdsame.exe	nfdsame.exe
PID 2016 wrote to memory of 1728	2016	nfdsame.exe	nfdsame.exe
PID 1728 wrote to memory of 1512	1728	nfdsame.exe	cmd.exe
PID 1728 wrote to memory of 1512	1728	nfdsame.exe	cmd.exe
PID 1728 wrote to memory of 1512	1728	nfdsame.exe	cmd.exe
PID 1728 wrote to memory of 1512	1728	nfdsame.exe	cmd.exe
PID 1512 wrote to memory of 1632	1512	cmd.exe	timeout.exe
PID 1512 wrote to memory of 1632	1512	cmd.exe	timeout.exe
PID 1512 wrote to memory of 1632	1512	cmd.exe	timeout.exe
PID 1512 wrote to memory of 1632	1512	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\zxcv.exe
"C:\Users\Admin\AppData\Local\Temp\zxcv.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1092

C:\Users\Admin\AppData\Local\Temp\nfdsame.exe
"C:\Users\Admin\AppData\Local\Temp\nfdsame.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016

C:\Users\Admin\AppData\Local\Temp\nfdsame.exe
"C:\Users\Admin\AppData\Local\Temp\nfdsame.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1728

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:1512

C:\Windows\SysWOW64\timeout.exe
timeout /t 5
5⤵
- Delays execution with timeout.exe
PID:1632

C:\Users\Admin\AppData\Local\Temp\zxcv.exe
"C:\Users\Admin\AppData\Local\Temp\zxcv.exe"
2⤵
- Loads dropped DLL
PID:1744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1744 -s 816
3⤵
- Program crash
PID:1932

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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
\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\nfdsame.exe
Filesize
556KB

MD5
a98781c107b2ace080273819b6686301

SHA1
aec10de615dc75204d257ee743cdc0e0936e8bf9

SHA256
200b2ed6014cf60dbc87aa964adc53304c9731a0ec90122383781b03bfb1f97a

SHA512
cca490fe092d5b7215687daba47b8a79c54e3194af17e14200c544ce0cf24f5b9622611dd230e0111a59736961e836bb8b734bfadf893f3f1ebbf6ea0323f67a

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

MD5
a98781c107b2ace080273819b6686301

SHA1
aec10de615dc75204d257ee743cdc0e0936e8bf9

SHA256
200b2ed6014cf60dbc87aa964adc53304c9731a0ec90122383781b03bfb1f97a

SHA512
cca490fe092d5b7215687daba47b8a79c54e3194af17e14200c544ce0cf24f5b9622611dd230e0111a59736961e836bb8b734bfadf893f3f1ebbf6ea0323f67a

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

MD5
a98781c107b2ace080273819b6686301

SHA1
aec10de615dc75204d257ee743cdc0e0936e8bf9

SHA256
200b2ed6014cf60dbc87aa964adc53304c9731a0ec90122383781b03bfb1f97a

SHA512
cca490fe092d5b7215687daba47b8a79c54e3194af17e14200c544ce0cf24f5b9622611dd230e0111a59736961e836bb8b734bfadf893f3f1ebbf6ea0323f67a

Download Submit
memory/1092-65-0x0000000002630000-0x0000000002638000-memory.dmp

Filesize
32KB

Download
memory/1092-56-0x0000000075761000-0x0000000075763000-memory.dmp

Filesize
8KB

Download
memory/1512-100-0x0000000000000000-mapping.dmp

Download
memory/1632-102-0x0000000000000000-mapping.dmp

Download
memory/1728-72-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1728-74-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1728-79-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1728-70-0x000000000043C0B2-mapping.dmp

Download
memory/1728-101-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/1744-73-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1744-67-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1744-61-0x0000000000406BEA-mapping.dmp

Download
memory/1744-103-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2016-59-0x0000000000000000-mapping.dmp

Download