gurcu | 41505242cdbf259aada52b773daeec33d239e4aefd685ba9e406d2cf2f9871a4

General

Target

Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Size

289KB
MD5

88cfc2ccc0575567122d1d233f9eb1c3
SHA1

4be67d0d801197f88c14d62f4495f17e89fc471f
SHA256

41505242cdbf259aada52b773daeec33d239e4aefd685ba9e406d2cf2f9871a4
SHA512

a2dd9ab7a2fe2a6d596c78394f65956f3e8973940229b305e2d763be69ff9f27b1450b5e08ca57cd0886a873fb663daad20ca94d9262a6c80a582dfc5f2e42b7
SSDEEP

6144:uHClm6SWPoK5Z0EwVSmRPQp+L5v9bbSUpi:uHCnZxb8hLLSUpi

Score

10^/10

gurcu collection discovery spyware stealer

Malware Config

Extracted

Family

gurcu

C2

https://api.telegram.org/bot6176004110:AAFKA5be4dMwA848HWxzYIzrzzOGIHMOJGc/sendMessage?chat_id=615133582

Signatures

Gurcu, WhiteSnake
Gurcu 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-1-5-21-1574508946-349927670-1185736483-1000\Control Panel\International\Geo\Nation	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Control Panel\International\Geo\Nation	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

Executes dropped EXE 2 IoCs

pid	Process
4564	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
2800	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Key opened	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Key opened	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Key opened	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Key opened	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Key opened	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

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

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
68	ip-api.com

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3756	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4372	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4564	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Token: SeDebugPrivilege	4564	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
Token: SeDebugPrivilege	2800	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 1440	1460	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe	86
PID 1460 wrote to memory of 1440	1460	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe	86
PID 1440 wrote to memory of 1292	1440	cmd.exe	88
PID 1440 wrote to memory of 1292	1440	cmd.exe	88
PID 1440 wrote to memory of 4372	1440	cmd.exe	89
PID 1440 wrote to memory of 4372	1440	cmd.exe	89
PID 1440 wrote to memory of 3756	1440	cmd.exe	91
PID 1440 wrote to memory of 3756	1440	cmd.exe	91
PID 1440 wrote to memory of 4564	1440	cmd.exe	92
PID 1440 wrote to memory of 4564	1440	cmd.exe	92
PID 2800 wrote to memory of 3164	2800	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe	98
PID 2800 wrote to memory of 3164	2800	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe	98

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

C:\Users\Admin\AppData\Local\Temp\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
"C:\Users\Admin\AppData\Local\Temp\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && schtasks /create /tn "Xd2c386a3a6edfe99de10f6ce6b3659c4809a" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe" &&START "" "C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1440
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:1292
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:4372
- - C:\Windows\system32\schtasks.exe
    schtasks /create /tn "Xd2c386a3a6edfe99de10f6ce6b3659c4809a" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:3756
- - C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
    "C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4564

C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2800
- C:\Windows\System32\tar.exe
  "C:\Windows\System32\tar.exe" -xvzf "C:\Users\Admin\AppData\Local\Temp\tmpB438.tmp" -C "C:\Users\Admin\AppData\Local\xdh16uwiax"
  2⤵
  PID:3164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

3

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe.log

Filesize
847B

MD5
3308a84a40841fab7dfec198b3c31af7

SHA1
4e7ab6336c0538be5dd7da529c0265b3b6523083

SHA256
169bc31a8d1666535977ca170d246a463e6531bb21faab6c48cb4269d9d60b2e

SHA512
97521d5fb94efdc836ea2723098a1f26a7589a76af51358eee17292d29c9325baf53ad6b4496c5ca3e208d1c9b9ad6797a370e2ae378072fc68f5d6e8b73b198

Download Submit
C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

Filesize
289KB

MD5
88cfc2ccc0575567122d1d233f9eb1c3

SHA1
4be67d0d801197f88c14d62f4495f17e89fc471f

SHA256
41505242cdbf259aada52b773daeec33d239e4aefd685ba9e406d2cf2f9871a4

SHA512
a2dd9ab7a2fe2a6d596c78394f65956f3e8973940229b305e2d763be69ff9f27b1450b5e08ca57cd0886a873fb663daad20ca94d9262a6c80a582dfc5f2e42b7

Download Submit
C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

Filesize
289KB

MD5
88cfc2ccc0575567122d1d233f9eb1c3

SHA1
4be67d0d801197f88c14d62f4495f17e89fc471f

SHA256
41505242cdbf259aada52b773daeec33d239e4aefd685ba9e406d2cf2f9871a4

SHA512
a2dd9ab7a2fe2a6d596c78394f65956f3e8973940229b305e2d763be69ff9f27b1450b5e08ca57cd0886a873fb663daad20ca94d9262a6c80a582dfc5f2e42b7

Download Submit
C:\Users\Admin\AppData\Local\Nvidia\Xd2c386a3a6edfe99de10f6ce6b3659c4809a.exe

Filesize
289KB

MD5
88cfc2ccc0575567122d1d233f9eb1c3

SHA1
4be67d0d801197f88c14d62f4495f17e89fc471f

SHA256
41505242cdbf259aada52b773daeec33d239e4aefd685ba9e406d2cf2f9871a4

SHA512
a2dd9ab7a2fe2a6d596c78394f65956f3e8973940229b305e2d763be69ff9f27b1450b5e08ca57cd0886a873fb663daad20ca94d9262a6c80a582dfc5f2e42b7

Download Submit
C:\Users\Admin\AppData\Local\xdh16uwiax\port.dat

Filesize
4B

MD5
288cd2567953f06e460a33951f55daaf

SHA1
fab4dc9e40a068e1303226ce7b83374769fffa2b

SHA256
33c62a2a336ae37ca20ef215f25803de63d9df76a391a35efece4ad27959324e

SHA512
091c93b435b99c1e673ee8097265ab0543f171e4f2b127187528f16faaad4b8c3c36dd72d435b8bc2190163ca832d9cfc7d81427d923bb15b5fc65f579df968d

Download Submit
memory/1460-1-0x00007FFE3B110000-0x00007FFE3BBD1000-memory.dmp

Filesize
10.8MB

Download
memory/1460-2-0x00000226E6700000-0x00000226E6710000-memory.dmp

Filesize
64KB

Download
memory/1460-6-0x00007FFE3B110000-0x00007FFE3BBD1000-memory.dmp

Filesize
10.8MB

Download
memory/1460-0-0x00000226E6270000-0x00000226E62BE000-memory.dmp

Filesize
312KB

Download
memory/2800-17-0x00007FFE3AEB0000-0x00007FFE3B971000-memory.dmp

Filesize
10.8MB

Download
memory/2800-18-0x000001F54BA20000-0x000001F54BA30000-memory.dmp

Filesize
64KB

Download
memory/2800-21-0x00007FFE3AEB0000-0x00007FFE3B971000-memory.dmp

Filesize
10.8MB

Download
memory/2800-22-0x000001F54BA20000-0x000001F54BA30000-memory.dmp

Filesize
64KB

Download
memory/4564-15-0x00000225DFF60000-0x00000225DFF70000-memory.dmp

Filesize
64KB

Download
memory/4564-14-0x00007FFE3AEB0000-0x00007FFE3B971000-memory.dmp

Filesize
10.8MB

Download
memory/4564-12-0x00000225DFF60000-0x00000225DFF70000-memory.dmp

Filesize
64KB

Download
memory/4564-11-0x00007FFE3AEB0000-0x00007FFE3B971000-memory.dmp

Filesize
10.8MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads