gurcu | a129d94c366e0caa9a024b5846031b331b5ea7526915299cac3c60c0a79fdde9

General

Target

1d0701d8fdc16df25fa0249b59aab042.exe
Size

5.6MB
MD5

1d0701d8fdc16df25fa0249b59aab042
SHA1

6028426f7e0a712a1aeae28d986337aafae26abe
SHA256

a129d94c366e0caa9a024b5846031b331b5ea7526915299cac3c60c0a79fdde9
SHA512

f1e2cf861b86af37094192c7d110640c630944cee00542c7133fce703584e4ed08a3dae76c0c1afd30c4890e66d482fcc17c1eeb434ec711586c7ff0130c9e17
SSDEEP

98304:tJRl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6UcA:tWOuK6mn9NzgMoYkSIvUcwti7TQlvciP

Score

10^/10

gurcu milleniumrat discovery rat spyware stealer

Malware Config

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7733030005:AAEneIh4MdJeCVQCr4Pys9pel6q03FCPCi0/sendDocument?chat_id=7538374929&caption=%F0%9F%93%82%20-%20Browser%20data%0A%E2%94%9C%E2%94%80%E2%94%80%20%F0%9F%93%82%20-%20cookies(0.25%20kb

https://api.telegram.org/bot7733030005:AAEneIh4MdJeCVQCr4Pys9pel6q03FCPCi0/sendMessage?chat_id=7538374929

https://api.telegram.org/bot7733030005:AAEneIh4MdJeCVQCr4Pys9pel6q03FCPCi0/getUpdates?offset=-

https://api.telegram.org/bot7733030005:AAEneIh4MdJeCVQCr4Pys9pel6q03FCPCi0/sendDocument?chat_id=7538374929&caption=%F0%9F%93%B8Screenshot%20take

Signatures

Gurcu family
gurcu
Gurcu, WhiteSnake
Gurcu aka WhiteSnake is a malware stealer written in C#.
stealer gurcu
MilleniumRat
MilleniumRat is a remote access trojan written in C#.
rat stealer milleniumrat
Milleniumrat family
milleniumrat

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	1d0701d8fdc16df25fa0249b59aab042.exe

Executes dropped EXE 1 IoCs

pid	Process
2524	Regkey.exe

Loads dropped DLL 2 IoCs

pid	Process
3656	1d0701d8fdc16df25fa0249b59aab042.exe
2524	Regkey.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
11	raw.githubusercontent.com
12	raw.githubusercontent.com
25	raw.githubusercontent.com

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

Enumerates processes with tasklist 1 TTPs 1 IoCs

discovery

Process Discovery

T1057

pid	Process
348	tasklist.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Regkey.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Regkey.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2720	timeout.exe

Suspicious behavior: EnumeratesProcesses 47 IoCs

pid	Process
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
3656	1d0701d8fdc16df25fa0249b59aab042.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe
2524	Regkey.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3656	1d0701d8fdc16df25fa0249b59aab042.exe
Token: SeDebugPrivilege	348	tasklist.exe
Token: SeDebugPrivilege	2524	Regkey.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2524	Regkey.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 684	3656	1d0701d8fdc16df25fa0249b59aab042.exe	86
PID 3656 wrote to memory of 684	3656	1d0701d8fdc16df25fa0249b59aab042.exe	86
PID 684 wrote to memory of 2436	684	cmd.exe	88
PID 684 wrote to memory of 2436	684	cmd.exe	88
PID 684 wrote to memory of 348	684	cmd.exe	89
PID 684 wrote to memory of 348	684	cmd.exe	89
PID 684 wrote to memory of 3196	684	cmd.exe	90
PID 684 wrote to memory of 3196	684	cmd.exe	90
PID 684 wrote to memory of 2720	684	cmd.exe	93
PID 684 wrote to memory of 2720	684	cmd.exe	93
PID 684 wrote to memory of 2524	684	cmd.exe	96
PID 684 wrote to memory of 2524	684	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\1d0701d8fdc16df25fa0249b59aab042.exe
"C:\Users\Admin\AppData\Local\Temp\1d0701d8fdc16df25fa0249b59aab042.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpBC1C.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpBC1C.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:684
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2436
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 3656"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:348
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:3196
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:2720
- - C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Regkey.exe
    "C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Regkey.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Process Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll

Filesize
1.7MB

MD5
65ccd6ecb99899083d43f7c24eb8f869

SHA1
27037a9470cc5ed177c0b6688495f3a51996a023

SHA256
aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4

SHA512
533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBC1C.tmp.bat

Filesize
286B

MD5
0a641a9ea543881462537850b806205b

SHA1
afde0f5a247060b8c74581a1244930b890b14c0a

SHA256
c2e1b1a523f10344828225f7d3bcd8d04237f1f1d1d665baa4be8fdf25de0d99

SHA512
37b08679c825a5492970286af5cbe0594d61f30422395f52adf6747cc5f02b4ec7e9f4f793e58468ab4954e7f5ef590382f64f65513019e64f2d4c569486cdf3

Download Submit
C:\Users\Admin\AppData\Roaming\GoogleChromeUpdateLog\Regkey.exe

Filesize
5.6MB

MD5
1d0701d8fdc16df25fa0249b59aab042

SHA1
6028426f7e0a712a1aeae28d986337aafae26abe

SHA256
a129d94c366e0caa9a024b5846031b331b5ea7526915299cac3c60c0a79fdde9

SHA512
f1e2cf861b86af37094192c7d110640c630944cee00542c7133fce703584e4ed08a3dae76c0c1afd30c4890e66d482fcc17c1eeb434ec711586c7ff0130c9e17

Download Submit
memory/2524-23-0x000001CB2FD50000-0x000001CB2FDA0000-memory.dmp

Filesize
320KB

Download
memory/2524-24-0x000001CB2EA40000-0x000001CB2EA62000-memory.dmp

Filesize
136KB

Download
memory/2524-47-0x000001CB161E0000-0x000001CB161F2000-memory.dmp

Filesize
72KB

Download
memory/2524-28-0x000001CB30A50000-0x000001CB30D7E000-memory.dmp

Filesize
3.2MB

Download
memory/2524-27-0x000001CB2EA10000-0x000001CB2EA36000-memory.dmp

Filesize
152KB

Download
memory/2524-26-0x000001CB30A10000-0x000001CB30A4A000-memory.dmp

Filesize
232KB

Download
memory/2524-22-0x000001CB2FCA0000-0x000001CB2FD52000-memory.dmp

Filesize
712KB

Download
memory/2524-20-0x000001CB2FC30000-0x000001CB2FC9A000-memory.dmp

Filesize
424KB

Download
memory/3656-1-0x0000021288930000-0x0000021288ED2000-memory.dmp

Filesize
5.6MB

Download
memory/3656-0-0x00007FF976223000-0x00007FF976225000-memory.dmp

Filesize
8KB

Download
memory/3656-7-0x00007FF976220000-0x00007FF976CE1000-memory.dmp

Filesize
10.8MB

Download
memory/3656-6-0x000002128ACE0000-0x000002128AD56000-memory.dmp

Filesize
472KB

Download
memory/3656-13-0x00007FF976220000-0x00007FF976CE1000-memory.dmp

Filesize
10.8MB

Download
memory/3656-9-0x0000021289310000-0x000002128931A000-memory.dmp

Filesize
40KB

Download
memory/3656-8-0x00000212894C0000-0x00000212894DE000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads