b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163

General

Target

b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe
Size

40KB
MD5

284544366f023967365a14bd7847ec52
SHA1

0728665c3f59c26e324c069a35e33f457c28ed58
SHA256

b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163
SHA512

50621da652f261ee80a292381105f31a01e285649a079e0fb600256a48f607b13e75112be038cf8cc045f686b96aa95f1392e25458034a127bb90d8b2dff9f01
SSDEEP

768:288hudAB4haLbYswxYxbsxI6NGxtjF3l0js:2/aaLcFx6bsxI6M/hl

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3656	update.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run	netstat.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\update.exe"	netstat.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3656 set thread context of 380	3656	update.exe	84

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
380	netstat.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1636	b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe
1636	b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe
3656	update.exe
3656	update.exe
380	netstat.exe
380	netstat.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe
Token: SeDebugPrivilege	3656	update.exe
Token: SeDebugPrivilege	380	netstat.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 3656	1636	b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe	83
PID 1636 wrote to memory of 3656	1636	b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe	83
PID 1636 wrote to memory of 3656	1636	b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe	83
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84
PID 3656 wrote to memory of 380	3656	update.exe	84

C:\Users\Admin\AppData\Local\Temp\b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe
"C:\Users\Admin\AppData\Local\Temp\b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636
- C:\Users\Admin\AppData\Local\Temp\update.exe
  C:\Users\Admin\AppData\Local\Temp\update.exe C:\Users\Admin\AppData\Local\Temp\B1BDC9~1.EXE
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3656
- - C:\Windows\SysWOW64\netstat.exe
    netstat.exe C:\Users\Admin\AppData\Local\Temp\update.exe
    3⤵
    - Adds Run key to start application
    - Gathers network information
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\update.exe

Filesize
40KB

MD5
284544366f023967365a14bd7847ec52

SHA1
0728665c3f59c26e324c069a35e33f457c28ed58

SHA256
b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163

SHA512
50621da652f261ee80a292381105f31a01e285649a079e0fb600256a48f607b13e75112be038cf8cc045f686b96aa95f1392e25458034a127bb90d8b2dff9f01

Download Submit
C:\Users\Admin\AppData\Local\Temp\update.exe

Filesize
40KB

MD5
284544366f023967365a14bd7847ec52

SHA1
0728665c3f59c26e324c069a35e33f457c28ed58

SHA256
b1bdc971748993cf9bf1eff0f7cb84a861f210860dae9e410ea6415d682fd163

SHA512
50621da652f261ee80a292381105f31a01e285649a079e0fb600256a48f607b13e75112be038cf8cc045f686b96aa95f1392e25458034a127bb90d8b2dff9f01

Download Submit
memory/380-135-0x0000000000000000-mapping.dmp

Download
memory/380-136-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/380-137-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/380-138-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/380-140-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/380-141-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/380-142-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/3656-132-0x0000000000000000-mapping.dmp

Download

Analysis

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