gurcu | dba8f020ac6d09728422932492657fea3f0a95754cd279f5a949b6982bd32129

Resubmissions

10-04-2024 02:52

240410-dcqxlaff2v 10

10-04-2024 02:52

10-04-2024 02:51

10-04-2024 02:51

14-10-2023 04:10

Analysis

max time kernel
7s
max time network
13s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-04-2024 02:52

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General

Target

f21559ac7c67d871d4f05.exe
Size

327KB
MD5

78fd6df30f791c7b5f45dca0b4c952a5
SHA1

d977ca82da0850eb5d4e69c9c657d1a41fb9c44d
SHA256

dba8f020ac6d09728422932492657fea3f0a95754cd279f5a949b6982bd32129
SHA512

abf0efb2412c522fbb7f6725a548e8d6a8bc045801a4dd8652a544a1527b99647140ad4843c41a6b00a728a5d8361c7e2ea80eba8ee3b291238729277dad228d
SSDEEP

6144:Vc6sWfGY/yODx332tOIXlU1QWZxXAnuHW9bbGDwVdqe1mM:Ps+CXIAuGG8dA

Score

10^/10

gurcu stealer

Malware Config

Extracted

Family

gurcu

https://api.telegram.org/bot5968091729:AAHVag_ncx5c5AIYERGTqv9kr7clJT1_HDU/sendMessage?chat_id=-1001962300376

Signatures

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

Deletes itself 1 IoCs

pid	Process
2780	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2648	f21559ac7c67d871d4f05.exe

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
2736	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2592	PING.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2036	f21559ac7c67d871d4f05.exe
Token: SeDebugPrivilege	2648	f21559ac7c67d871d4f05.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2780	2036	f21559ac7c67d871d4f05.exe	28
PID 2036 wrote to memory of 2780	2036	f21559ac7c67d871d4f05.exe	28
PID 2036 wrote to memory of 2780	2036	f21559ac7c67d871d4f05.exe	28
PID 2780 wrote to memory of 2484	2780	cmd.exe	30
PID 2780 wrote to memory of 2484	2780	cmd.exe	30
PID 2780 wrote to memory of 2484	2780	cmd.exe	30
PID 2780 wrote to memory of 2592	2780	cmd.exe	31
PID 2780 wrote to memory of 2592	2780	cmd.exe	31
PID 2780 wrote to memory of 2592	2780	cmd.exe	31
PID 2780 wrote to memory of 2736	2780	cmd.exe	32
PID 2780 wrote to memory of 2736	2780	cmd.exe	32
PID 2780 wrote to memory of 2736	2780	cmd.exe	32
PID 2780 wrote to memory of 2648	2780	cmd.exe	33
PID 2780 wrote to memory of 2648	2780	cmd.exe	33
PID 2780 wrote to memory of 2648	2780	cmd.exe	33

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

C:\Users\Admin\AppData\Local\Temp\f21559ac7c67d871d4f05.exe
"C:\Users\Admin\AppData\Local\Temp\f21559ac7c67d871d4f05.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && schtasks /create /tn "f21559ac7c67d871d4f05" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Nvidia\f21559ac7c67d871d4f05.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\f21559ac7c67d871d4f05.exe" &&START "" "C:\Users\Admin\AppData\Local\Nvidia\f21559ac7c67d871d4f05.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2484
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:2592
- - C:\Windows\system32\schtasks.exe
    schtasks /create /tn "f21559ac7c67d871d4f05" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\Nvidia\f21559ac7c67d871d4f05.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:2736
- - C:\Users\Admin\AppData\Local\Nvidia\f21559ac7c67d871d4f05.exe
    "C:\Users\Admin\AppData\Local\Nvidia\f21559ac7c67d871d4f05.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Nvidia\f21559ac7c67d871d4f05.exe

Filesize
327KB

MD5
78fd6df30f791c7b5f45dca0b4c952a5

SHA1
d977ca82da0850eb5d4e69c9c657d1a41fb9c44d

SHA256
dba8f020ac6d09728422932492657fea3f0a95754cd279f5a949b6982bd32129

SHA512
abf0efb2412c522fbb7f6725a548e8d6a8bc045801a4dd8652a544a1527b99647140ad4843c41a6b00a728a5d8361c7e2ea80eba8ee3b291238729277dad228d

Download Submit
memory/2036-0-0x0000000000FD0000-0x0000000001028000-memory.dmp

Filesize
352KB

Download
memory/2036-1-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

Filesize
9.9MB

Download
memory/2036-2-0x000000001A8D0000-0x000000001A950000-memory.dmp

Filesize
512KB

Download
memory/2036-5-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

Filesize
9.9MB

Download
memory/2648-9-0x0000000000B30000-0x0000000000B88000-memory.dmp

Filesize
352KB

Download
memory/2648-10-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp

Filesize
9.9MB

Download
memory/2648-11-0x000000001B550000-0x000000001B5D0000-memory.dmp

Filesize
512KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads