1bbc61490d03fe12c5511aa2c81e7e94344aa40dd968b48e0736342f2a8ee1e6

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-08-2024 02:28

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General

Target

$1/$OUTDIR/sftp_plugin/tc_sftp_uninstaller.exe
Size

59KB
MD5

e04b1bbeaff6221daf4d4ae0ed7fd00c
SHA1

cbe6a9e349a6711dc9e040e15ec32345c1bb7aee
SHA256

36b1104781e2c77a1e76593e697ac99621f27db3bfd5c282f7ae3579bf510a5b
SHA512

2f8523b1fd5bed682dc841292a5523eabbd49fea71b1e088a5080c375ed8e67b22e95e60129516d96bd720845a1c27fd37fd993d1cadfd81296176f683066334
SSDEEP

768:j9qjtOoh/pZbvc+HX+fFXSJA/mIj6qkzry8F9zGPVzISJRnHzioSe4bU/iXAB8+O:j0joUxZbE+HOI66qkryz9zIMipGVW3

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1996	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	tc_sftp_uninstaller.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 2 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	tc_sftp_uninstaller.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 1996	2328	tc_sftp_uninstaller.exe	30
PID 2328 wrote to memory of 1996	2328	tc_sftp_uninstaller.exe	30
PID 2328 wrote to memory of 1996	2328	tc_sftp_uninstaller.exe	30
PID 2328 wrote to memory of 1996	2328	tc_sftp_uninstaller.exe	30

C:\Users\Admin\AppData\Local\Temp\$1\$OUTDIR\sftp_plugin\tc_sftp_uninstaller.exe
"C:\Users\Admin\AppData\Local\Temp\$1\$OUTDIR\sftp_plugin\tc_sftp_uninstaller.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\$1\$OUTDIR\sftp_plugin\
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
59KB

MD5
e04b1bbeaff6221daf4d4ae0ed7fd00c

SHA1
cbe6a9e349a6711dc9e040e15ec32345c1bb7aee

SHA256
36b1104781e2c77a1e76593e697ac99621f27db3bfd5c282f7ae3579bf510a5b

SHA512
2f8523b1fd5bed682dc841292a5523eabbd49fea71b1e088a5080c375ed8e67b22e95e60129516d96bd720845a1c27fd37fd993d1cadfd81296176f683066334

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