7df2d122f80f8ba8f89b7447457d4637c2a89455466612c6fe021734a014531c

General

Target

76045a9a88df63f1fe5189f0924ce094.exe
Size

410KB
MD5

76045a9a88df63f1fe5189f0924ce094
SHA1

214399c6f31d29124e871009188d9b4c2e1080e7
SHA256

7df2d122f80f8ba8f89b7447457d4637c2a89455466612c6fe021734a014531c
SHA512

237e838e7938fd97da3719bc8656491484acab05628cbae95c8df89fa308647b4367d6f54515921c378827cd65b949ffaf6f23a0d10b8b316b25734b9435327c
SSDEEP

12288:qnNhuBoY8SorxgmA+nlvVlXLydgyZPi8zkzD6XiV3:qPatCg7EPxed/1i8zO33

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe csrcs.exe"	76045a9a88df63f1fe5189f0924ce094.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	76045a9a88df63f1fe5189f0924ce094.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	76045a9a88df63f1fe5189f0924ce094.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\csrcs = "C:\\Windows\\system32\\csrcs.exe"	76045a9a88df63f1fe5189f0924ce094.exe

Executes dropped EXE 1 IoCs

pid	Process
3048	csrcs.exe

Loads dropped DLL 7 IoCs

pid	Process
2816	76045a9a88df63f1fe5189f0924ce094.exe
2816	76045a9a88df63f1fe5189f0924ce094.exe
2816	76045a9a88df63f1fe5189f0924ce094.exe
2816	76045a9a88df63f1fe5189f0924ce094.exe
2816	76045a9a88df63f1fe5189f0924ce094.exe
3048	csrcs.exe
3048	csrcs.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2816-0-0x0000000000400000-0x0000000000492000-memory.dmp	upx
behavioral1/memory/3048-31-0x0000000000400000-0x0000000000492000-memory.dmp	upx
behavioral1/memory/3048-50-0x0000000000400000-0x0000000000492000-memory.dmp	upx
behavioral1/files/0x000b000000013a1a-13.dat	upx
behavioral1/memory/2816-59-0x0000000000400000-0x0000000000492000-memory.dmp	upx

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/3048-31-0x0000000000400000-0x0000000000492000-memory.dmp	autoit_exe
behavioral1/memory/3048-50-0x0000000000400000-0x0000000000492000-memory.dmp	autoit_exe
behavioral1/memory/2816-59-0x0000000000400000-0x0000000000492000-memory.dmp	autoit_exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\csrcs.exe	76045a9a88df63f1fe5189f0924ce094.exe
File created	C:\Windows\SysWOW64\csrcs.exe	76045a9a88df63f1fe5189f0924ce094.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
3028	PING.EXE
2788	PING.EXE
2080	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2816	76045a9a88df63f1fe5189f0924ce094.exe
2816	76045a9a88df63f1fe5189f0924ce094.exe
2816	76045a9a88df63f1fe5189f0924ce094.exe
3048	csrcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 3048	2816	76045a9a88df63f1fe5189f0924ce094.exe	29
PID 2816 wrote to memory of 3048	2816	76045a9a88df63f1fe5189f0924ce094.exe	29
PID 2816 wrote to memory of 3048	2816	76045a9a88df63f1fe5189f0924ce094.exe	29
PID 2816 wrote to memory of 3048	2816	76045a9a88df63f1fe5189f0924ce094.exe	29
PID 3048 wrote to memory of 2612	3048	csrcs.exe	28
PID 3048 wrote to memory of 2612	3048	csrcs.exe	28
PID 3048 wrote to memory of 2612	3048	csrcs.exe	28
PID 3048 wrote to memory of 2612	3048	csrcs.exe	28
PID 2612 wrote to memory of 3028	2612	cmd.exe	26
PID 2612 wrote to memory of 3028	2612	cmd.exe	26
PID 2612 wrote to memory of 3028	2612	cmd.exe	26
PID 2612 wrote to memory of 3028	2612	cmd.exe	26
PID 2816 wrote to memory of 2484	2816	76045a9a88df63f1fe5189f0924ce094.exe	34
PID 2816 wrote to memory of 2484	2816	76045a9a88df63f1fe5189f0924ce094.exe	34
PID 2816 wrote to memory of 2484	2816	76045a9a88df63f1fe5189f0924ce094.exe	34
PID 2816 wrote to memory of 2484	2816	76045a9a88df63f1fe5189f0924ce094.exe	34
PID 2484 wrote to memory of 2788	2484	cmd.exe	33
PID 2484 wrote to memory of 2788	2484	cmd.exe	33
PID 2484 wrote to memory of 2788	2484	cmd.exe	33
PID 2484 wrote to memory of 2788	2484	cmd.exe	33
PID 2612 wrote to memory of 2080	2612	cmd.exe	35
PID 2612 wrote to memory of 2080	2612	cmd.exe	35
PID 2612 wrote to memory of 2080	2612	cmd.exe	35
PID 2612 wrote to memory of 2080	2612	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\76045a9a88df63f1fe5189f0924ce094.exe
"C:\Users\Admin\AppData\Local\Temp\76045a9a88df63f1fe5189f0924ce094.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Adds policy Run key to start application
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\csrcs.exe
  "C:\Windows\System32\csrcs.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3048
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\suicide.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2484

C:\Windows\SysWOW64\PING.EXE
ping -n 5 -w 250 127.0.0.1
1⤵
- Runs ping.exe
PID:3028

C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\suicide.bat
1⤵
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\SysWOW64\PING.EXE
  ping -n 5 -w 250 127.0.0.1
  2⤵
  - Runs ping.exe
  PID:2080

C:\Windows\SysWOW64\PING.EXE
ping -n 5 -w 250 127.0.0.1
1⤵
- Runs ping.exe
PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2816-0-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/2816-28-0x00000000058C0000-0x0000000005952000-memory.dmp

Filesize
584KB

Download
memory/2816-59-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/3048-31-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/3048-42-0x00000000008A0000-0x0000000000932000-memory.dmp

Filesize
584KB

Download
memory/3048-50-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads