3890bc2638beaf831fb3ad49af5442ef5118d70a6d7c25a3fb0b05e47d9e75e6

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/10/2024, 13:34

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General

Target

tmp3czzldh6.exe
Size

834KB
MD5

102cd04929ffa73b9584a7c6953a8ca5
SHA1

6f7943b1901c44c28bc16483b4187bc8f15f5742
SHA256

3890bc2638beaf831fb3ad49af5442ef5118d70a6d7c25a3fb0b05e47d9e75e6
SHA512

ba7c17f3ddf61bf2a8ba7d2912b2a3b2737616bad21accfa84db8b958ab33a0b3b197a6326c240e8bbc23dfe8f0868bb68a19a20141e50ca9d9da258442e3694
SSDEEP

12288:DeUSST7V67gJFlY5qWHJv/h42L7ukEYIbMpY6vbDOQv/Zlav7klgrdm4Vz0Rppp5:DcM7Y7gJFZWpvq2L7ukEYIWvPT

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2204	powershell.exe
2740	powershell.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp3czzldh6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2788	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
316	tmp3czzldh6.exe
2740	powershell.exe
2204	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	316	tmp3czzldh6.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	2204	powershell.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 2204	316	tmp3czzldh6.exe	30
PID 316 wrote to memory of 2204	316	tmp3czzldh6.exe	30
PID 316 wrote to memory of 2204	316	tmp3czzldh6.exe	30
PID 316 wrote to memory of 2204	316	tmp3czzldh6.exe	30
PID 316 wrote to memory of 2740	316	tmp3czzldh6.exe	32
PID 316 wrote to memory of 2740	316	tmp3czzldh6.exe	32
PID 316 wrote to memory of 2740	316	tmp3czzldh6.exe	32
PID 316 wrote to memory of 2740	316	tmp3czzldh6.exe	32
PID 316 wrote to memory of 2788	316	tmp3czzldh6.exe	33
PID 316 wrote to memory of 2788	316	tmp3czzldh6.exe	33
PID 316 wrote to memory of 2788	316	tmp3czzldh6.exe	33
PID 316 wrote to memory of 2788	316	tmp3czzldh6.exe	33
PID 316 wrote to memory of 2840	316	tmp3czzldh6.exe	36
PID 316 wrote to memory of 2840	316	tmp3czzldh6.exe	36
PID 316 wrote to memory of 2840	316	tmp3czzldh6.exe	36
PID 316 wrote to memory of 2840	316	tmp3czzldh6.exe	36
PID 316 wrote to memory of 1784	316	tmp3czzldh6.exe	37
PID 316 wrote to memory of 1784	316	tmp3czzldh6.exe	37
PID 316 wrote to memory of 1784	316	tmp3czzldh6.exe	37
PID 316 wrote to memory of 1784	316	tmp3czzldh6.exe	37
PID 316 wrote to memory of 1772	316	tmp3czzldh6.exe	38
PID 316 wrote to memory of 1772	316	tmp3czzldh6.exe	38
PID 316 wrote to memory of 1772	316	tmp3czzldh6.exe	38
PID 316 wrote to memory of 1772	316	tmp3czzldh6.exe	38
PID 316 wrote to memory of 2760	316	tmp3czzldh6.exe	39
PID 316 wrote to memory of 2760	316	tmp3czzldh6.exe	39
PID 316 wrote to memory of 2760	316	tmp3czzldh6.exe	39
PID 316 wrote to memory of 2760	316	tmp3czzldh6.exe	39
PID 316 wrote to memory of 2708	316	tmp3czzldh6.exe	40
PID 316 wrote to memory of 2708	316	tmp3czzldh6.exe	40
PID 316 wrote to memory of 2708	316	tmp3czzldh6.exe	40
PID 316 wrote to memory of 2708	316	tmp3czzldh6.exe	40

C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe
"C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:316
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2204
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zxnBrlQ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zxnBrlQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB75D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe"
  2⤵
  PID:2840
- C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe"
  2⤵
  PID:1784
- C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe"
  2⤵
  PID:1772
- C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe"
  2⤵
  PID:2760
- C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp3czzldh6.exe"
  2⤵
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB75D.tmp

Filesize
1KB

MD5
9aef6e1a1bb734f20b2d5795e236e754

SHA1
ecf4ff920c192d46ea0476368be668d9e2651559

SHA256
ab590903c261c87ebe75e8d493c8bb2c0e7a13a10eead830807e46c7b3b188b2

SHA512
1b02d65a498694b378c295dd926a4da441d70a171af870e9fb870cd4a9e65d1d9fb71c7fd9d161c03bc2daf21c5b45de81c7ec13c8438e88b8928e76ae205d45

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\5XMN59YT9K8F7MW9K6SL.temp

Filesize
7KB

MD5
84cf06706709cfc297954f85caf28839

SHA1
767b44a9611ee4cb4c06e690e51daa5fc079bca0

SHA256
83acaee9dec2a39c53206145f4570e0ca2a2f77232b6f4dadf154c62d2e1d188

SHA512
f6f5d70e361e1e585df270b775c5a1090bab428a8b55324170e0d02b57498ccf63e53cc79f7147be9efe81f252332a8c47b53a0aabe3b816f023a984e47da6b9

Download Submit
memory/316-0-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

Filesize
4KB

Download
memory/316-1-0x00000000003F0000-0x00000000004C8000-memory.dmp

Filesize
864KB

Download
memory/316-2-0x0000000074DD0000-0x00000000754BE000-memory.dmp

Filesize
6.9MB

Download
memory/316-3-0x0000000000520000-0x0000000000532000-memory.dmp

Filesize
72KB

Download
memory/316-4-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

Filesize
4KB

Download
memory/316-5-0x0000000074DD0000-0x00000000754BE000-memory.dmp

Filesize
6.9MB

Download
memory/316-6-0x0000000005200000-0x0000000005282000-memory.dmp

Filesize
520KB

Download
memory/316-19-0x0000000074DD0000-0x00000000754BE000-memory.dmp

Filesize
6.9MB

Download