gurcu | 3706d906a279ab466f5c526dea3e804ce378ac164fcdc49a1184190669f8f934

General

Target

erteterteret.exe
Size

177KB
MD5

858162036ca676172602e7f20396294d
SHA1

98a1816c6f93aad44e89bbd40ffc5be75528fff6
SHA256

3706d906a279ab466f5c526dea3e804ce378ac164fcdc49a1184190669f8f934
SHA512

9206535c14c4a2c61d06f5e52ffc513663c73c00d4ac2dae7f9f0f038a503e091e8a003d794674df2b23f8d23f3e7ecba956c3d24a77babc73cd83cda2b114c4
SSDEEP

3072:W9vmZA2wRabTfnm/KOYqPtBz65/M6If+3Js+3JFkKeTn6:W9gdw0bzmMExBt25

Score

10^/10

gurcu xworm execution rat stealer trojan

Malware Config

Extracted

Family

xworm

C2

email-champions.gl.at.ply.gg:33429

took-chance.gl.at.ply.gg:33429

Attributes

Install_directory
%AppData%
install_file
MsBusDriver.exe
telegram
https://api.telegram.org/bot6814850214:AAGtrnkhUh3vMq-wH7W5cvNuSWLdcy7mtis/sendMessage?chat_id=7094837950

Extracted

Family

gurcu

C2

https://api.telegram.org/bot6814850214:AAGtrnkhUh3vMq-wH7W5cvNuSWLdcy7mtis/sendMessage?chat_id=7094837950

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3180-1-0x0000000000900000-0x0000000000932000-memory.dmp	family_xworm
behavioral2/files/0x000e000000023448-56.dat	family_xworm

Gurcu, WhiteSnake
Gurcu is a malware stealer written in C#.
stealer gurcu
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1772	powershell.exe
3024	powershell.exe
4532	powershell.exe
3412	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	erteterteret.exe

Executes dropped EXE 3 IoCs

pid	Process
2084	MicrosoftEdgeUpdate937498302
320	MicrosoftEdgeUpdate937498302
4768	MicrosoftEdgeUpdate937498302

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
20	ip-api.com

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1688	timeout.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
1568	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1772	powershell.exe
1772	powershell.exe
3024	powershell.exe
3024	powershell.exe
4532	powershell.exe
4532	powershell.exe
3412	powershell.exe
3412	powershell.exe
3180	erteterteret.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3180	erteterteret.exe
Token: SeDebugPrivilege	1772	powershell.exe
Token: SeDebugPrivilege	3024	powershell.exe
Token: SeDebugPrivilege	4532	powershell.exe
Token: SeDebugPrivilege	3412	powershell.exe
Token: SeDebugPrivilege	3180	erteterteret.exe
Token: SeDebugPrivilege	2084	MicrosoftEdgeUpdate937498302
Token: SeDebugPrivilege	320	MicrosoftEdgeUpdate937498302
Token: SeDebugPrivilege	4768	MicrosoftEdgeUpdate937498302

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3180	erteterteret.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3180 wrote to memory of 1772	3180	erteterteret.exe	92
PID 3180 wrote to memory of 1772	3180	erteterteret.exe	92
PID 3180 wrote to memory of 3024	3180	erteterteret.exe	94
PID 3180 wrote to memory of 3024	3180	erteterteret.exe	94
PID 3180 wrote to memory of 4532	3180	erteterteret.exe	97
PID 3180 wrote to memory of 4532	3180	erteterteret.exe	97
PID 3180 wrote to memory of 3412	3180	erteterteret.exe	99
PID 3180 wrote to memory of 3412	3180	erteterteret.exe	99
PID 3180 wrote to memory of 1568	3180	erteterteret.exe	101
PID 3180 wrote to memory of 1568	3180	erteterteret.exe	101
PID 3180 wrote to memory of 2500	3180	erteterteret.exe	125
PID 3180 wrote to memory of 2500	3180	erteterteret.exe	125
PID 3180 wrote to memory of 208	3180	erteterteret.exe	127
PID 3180 wrote to memory of 208	3180	erteterteret.exe	127
PID 208 wrote to memory of 1688	208	cmd.exe	129
PID 208 wrote to memory of 1688	208	cmd.exe	129

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\erteterteret.exe
"C:\Users\Admin\AppData\Local\Temp\erteterteret.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3180
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\erteterteret.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1772
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'erteterteret.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3024
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4532
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'MicrosoftEdgeUpdate937498302'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3412
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "MicrosoftEdgeUpdate937498302" /tr "C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1568
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "MicrosoftEdgeUpdate937498302"
  2⤵
  PID:2500
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD766.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:208
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1688

C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302
C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2084

C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302
C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:320

C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302
C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4768

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

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\MicrosoftEdgeUpdate937498302.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
36ce492590dae6a99dc720c4b441342d

SHA1
f33cf61dad0c21b77afa23e8288152dd51effeb3

SHA256
e049e9723cef24d71a65551cfbe9463e3ab6de1c9ac059511ae5f461a3becde5

SHA512
f291a68555f9970fe51f7dae052dfd5e2c01ff4ebb275d8a348bb7fcb6eb744fb3ce55006a850a9571ae8d0c5763f87ff1ce0f0f67e83794f4cc0056aa27935d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
aeceee3981c528bdc5e1c635b65d223d

SHA1
de9939ed37edca6772f5cdd29f6a973b36b7d31b

SHA256
b99f3c778a047e0348c92c16e0419fa29418d10d0fec61ad8283e92a094a2b32

SHA512
df48285f38e9284efdbd9f8d99e2e94a46fb5465953421ab88497b73ae06895b98ea5c98796560810a6f342c31a9112ea87e03cd3e267fd8518d7585f492a8fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wkiwsdzj.w2u.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD766.tmp.bat

Filesize
164B

MD5
39bf46ad6771d1e5bfcfc89b2fc3a0ce

SHA1
b73586f6996c957b2a2781d5c99601596d3429e7

SHA256
4b8cbee8a6ce689b6e303199907beaa2a69698d8fc1da1940f60f4d65735b86f

SHA512
864e9d4468934ff4b5831adeb78e69fd858a08ddaf09fa0c01c482589cb6663f8299620abe23b522e998fcbbb521a0eadc499b1e6138266700dde47532bd3d0c

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftEdgeUpdate937498302

Filesize
177KB

MD5
858162036ca676172602e7f20396294d

SHA1
98a1816c6f93aad44e89bbd40ffc5be75528fff6

SHA256
3706d906a279ab466f5c526dea3e804ce378ac164fcdc49a1184190669f8f934

SHA512
9206535c14c4a2c61d06f5e52ffc513663c73c00d4ac2dae7f9f0f038a503e091e8a003d794674df2b23f8d23f3e7ecba956c3d24a77babc73cd83cda2b114c4

Download Submit
memory/1772-18-0x00007FFEF8750000-0x00007FFEF9211000-memory.dmp

Filesize
10.8MB

Download
memory/1772-11-0x000002C363F50000-0x000002C363F72000-memory.dmp

Filesize
136KB

Download
memory/1772-5-0x00007FFEF8750000-0x00007FFEF9211000-memory.dmp

Filesize
10.8MB

Download
memory/1772-4-0x00007FFEF8750000-0x00007FFEF9211000-memory.dmp

Filesize
10.8MB

Download
memory/1772-3-0x00007FFEF8750000-0x00007FFEF9211000-memory.dmp

Filesize
10.8MB

Download
memory/3180-52-0x00007FFEF8753000-0x00007FFEF8755000-memory.dmp

Filesize
8KB

Download
memory/3180-55-0x00007FFEF8750000-0x00007FFEF9211000-memory.dmp

Filesize
10.8MB

Download
memory/3180-0-0x00007FFEF8753000-0x00007FFEF8755000-memory.dmp

Filesize
8KB

Download
memory/3180-59-0x0000000001160000-0x000000000116C000-memory.dmp

Filesize
48KB

Download
memory/3180-2-0x00007FFEF8750000-0x00007FFEF9211000-memory.dmp

Filesize
10.8MB

Download
memory/3180-66-0x00007FFEF8750000-0x00007FFEF9211000-memory.dmp

Filesize
10.8MB

Download
memory/3180-1-0x0000000000900000-0x0000000000932000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads