fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37

General

Target

fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe
Size

15.2MB
MD5

385593831f8c586b079fb4462364c0ad
SHA1

454e70d73e67d402549bfa257b251e1504efbe2c
SHA256

fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37
SHA512

b797413c56e3cbfecc393b25d88a1fa7f998611a5043be60045827352b5460c92cd508b42f2c1bd165f5c16b98c20e52c18c4ef5327359faf68ff273275c5d10
SSDEEP

196608:CkzbYrllmyl1BLelbai5HEQ6hLPT7CelCwup5Mm8rO4Dq9nnvwcadJ:kllRPZe2jhLL3ljOJ9nvDi

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000600000002322f-3.dat	acprotect
behavioral2/files/0x000a000000023162-33.dat	acprotect

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe

Executes dropped EXE 1 IoCs

pid	Process
1964	aria2c.exe

Loads dropped DLL 2 IoCs

pid	Process
2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe
2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe

UPX packed file 15 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000600000002322f-3.dat	upx
behavioral2/memory/2496-4-0x0000000074030000-0x00000000741EF000-memory.dmp	upx
behavioral2/memory/2496-12-0x0000000074030000-0x00000000741EF000-memory.dmp	upx
behavioral2/files/0x000200000002288b-25.dat	upx
behavioral2/files/0x000200000002288b-27.dat	upx
behavioral2/memory/1964-28-0x0000000000400000-0x00000000008B0000-memory.dmp	upx
behavioral2/files/0x000200000002288b-29.dat	upx
behavioral2/files/0x000a000000023162-33.dat	upx
behavioral2/memory/2496-38-0x0000000072A60000-0x0000000072B85000-memory.dmp	upx
behavioral2/memory/2496-43-0x0000000072A60000-0x0000000072B85000-memory.dmp	upx
behavioral2/memory/2496-42-0x0000000074030000-0x00000000741EF000-memory.dmp	upx
behavioral2/memory/1964-44-0x0000000000400000-0x00000000008B0000-memory.dmp	upx
behavioral2/memory/2496-46-0x0000000072A60000-0x0000000072B85000-memory.dmp	upx
behavioral2/memory/2496-53-0x0000000074030000-0x00000000741EF000-memory.dmp	upx
behavioral2/memory/2496-54-0x0000000072A60000-0x0000000072B85000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe
2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe
2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 1964	2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe	107
PID 2496 wrote to memory of 1964	2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe	107
PID 2496 wrote to memory of 1964	2496	fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe	107

C:\Users\Admin\AppData\Local\Temp\fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe
"C:\Users\Admin\AppData\Local\Temp\fa4ff8ff2af898f02a010cbe23165b966828bd324c1676c5ae9a502bbfa94d37.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\Documents\Downloader\aria2c.exe
  "C:\Users\Admin\Documents\Downloader\aria2c.exe" --conf-path="C:\Users\Admin\Documents\\Downloader\aria2.conf" --disable-ipv6=false --enable-rpc=true --rpc-allow-origin-all=true --rpc-listen-port=6288 --listen-port=6388 --dht-listen-port=6390 --enable-dht=true --enable-dht6=true --dht-file-path="C:\Users\Admin\Documents\\Downloader\dht.dat" --dht-file-path6="C:\Users\Admin\Documents\\Downloader\dht6.dat" --stop-with-process=2496 --bt-external-ip= --input-file="C:\Users\Admin\Documents\\Downloader\aria2.session" #--save-session="C:\Users\Admin\Documents\\Downloader\aria2.session" --quiet=true
  2⤵
  - Executes dropped EXE
  PID:1964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Documents\Downloader\ExuiKrnln.dll

Filesize
391KB

MD5
4587e896480603dcd85a4956bb3609d7

SHA1
10e88bc0852939bc09bb24019f4dc310a2fd17ad

SHA256
70e5fdd3d67ec5f63b3796301d58200e8121d6b89cf072cde087ed18d0923483

SHA512
0a7649b12d416659a76815d8745590624bea0b4d754af39b71108fa9b186041a381e11136fa231bbd43ac6df1d8705e377bac391c6954c22228cece7a2bb323b

Download Submit
C:\Users\Admin\Documents\Downloader\aria2.conf

Filesize
55KB

MD5
4a1b71ede6ff12456038f6a26e356a42

SHA1
16af6552ebbeb0300d1451715add745e840ff993

SHA256
0ee9c9e686a595f86d25854bca6e92e8bfd51437a28306b4eaebf736156cc7ee

SHA512
bea15214c76083c86f4104e569bb93ba7000e4e555382b6cc97e0c9bdb6b4de72f50b8458d4c3420e073edefe4f40b7eea580000001d089fd5c78e303fbd8501

Download Submit
C:\Users\Admin\Documents\Downloader\aria2c.exe

Filesize
1.8MB

MD5
6d1fe9171538df42e013e6ecf330ec48

SHA1
a85203e77419c484a4434d56f96a0404b73ec588

SHA256
ef342516f4e2c211cd70cef033e558d598229c75e39292b668ae4ea7bf09eafe

SHA512
6603d1a60aa610c3269f9592877ef1a56f4dfe0f2496c017434ae1074fe8c3d0348386316129607d5dc09af1e7ae35f67e12fd72131652dc95e308b5581e1fbd

Download Submit
C:\Users\Admin\Documents\Downloader\aria2c.exe

Filesize
1.8MB

MD5
6d1fe9171538df42e013e6ecf330ec48

SHA1
a85203e77419c484a4434d56f96a0404b73ec588

SHA256
ef342516f4e2c211cd70cef033e558d598229c75e39292b668ae4ea7bf09eafe

SHA512
6603d1a60aa610c3269f9592877ef1a56f4dfe0f2496c017434ae1074fe8c3d0348386316129607d5dc09af1e7ae35f67e12fd72131652dc95e308b5581e1fbd

Download Submit
C:\Users\Admin\Documents\Downloader\aria2c.exe

Filesize
1.8MB

MD5
6d1fe9171538df42e013e6ecf330ec48

SHA1
a85203e77419c484a4434d56f96a0404b73ec588

SHA256
ef342516f4e2c211cd70cef033e558d598229c75e39292b668ae4ea7bf09eafe

SHA512
6603d1a60aa610c3269f9592877ef1a56f4dfe0f2496c017434ae1074fe8c3d0348386316129607d5dc09af1e7ae35f67e12fd72131652dc95e308b5581e1fbd

Download Submit
C:\Users\Admin\Documents\Downloader\libcurl.dll

Filesize
759KB

MD5
b8d07f6ebe3d5473fa6e5c4aa3670bd6

SHA1
0300e9767e9ebe8f7ba88beea16e08c51549ea86

SHA256
927b9c233435dcde129586d0be8351c165adbc2d35bfb63d9b557abe8dc10703

SHA512
866a67e890456fd7b94d3d55b293a124053c75a56c7ef3d646329ec8ab300c365b319ab09daad81644a13a17803a663a426e0a4b78761082ae0b6ab590886efd

Download Submit
memory/1964-44-0x0000000000400000-0x00000000008B0000-memory.dmp

Filesize
4.7MB

Download
memory/1964-28-0x0000000000400000-0x00000000008B0000-memory.dmp

Filesize
4.7MB

Download
memory/2496-37-0x0000000004810000-0x0000000004811000-memory.dmp

Filesize
4KB

Download
memory/2496-12-0x0000000074030000-0x00000000741EF000-memory.dmp

Filesize
1.7MB

Download
memory/2496-31-0x0000000001940000-0x0000000001941000-memory.dmp

Filesize
4KB

Download
memory/2496-38-0x0000000072A60000-0x0000000072B85000-memory.dmp

Filesize
1.1MB

Download
memory/2496-43-0x0000000072A60000-0x0000000072B85000-memory.dmp

Filesize
1.1MB

Download
memory/2496-42-0x0000000074030000-0x00000000741EF000-memory.dmp

Filesize
1.7MB

Download
memory/2496-4-0x0000000074030000-0x00000000741EF000-memory.dmp

Filesize
1.7MB

Download
memory/2496-46-0x0000000072A60000-0x0000000072B85000-memory.dmp

Filesize
1.1MB

Download
memory/2496-53-0x0000000074030000-0x00000000741EF000-memory.dmp

Filesize
1.7MB

Download
memory/2496-54-0x0000000072A60000-0x0000000072B85000-memory.dmp

Filesize
1.1MB

Download

Analysis

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