850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0

General

Target

850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
Size

152KB
MD5

a3d98864234b12a726f5439a5bf00a27
SHA1

9998f14228fa08bb67563298ec62f5cc2f6304f7
SHA256

850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0
SHA512

17d69f7f236b640393f380cd5cfd121a1bbc6307de3d1ffca2208ba778b752348a9c2ce0bfd3b5bab93c9f189bc2757e2dddf36bc21eaba948081409d8e45e5d
SSDEEP

3072:AJdok6YyBqepk8psalzBZ/javutRoh2EcVN5R7:xhQufyaOutjEYNf7

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\Wow6432Node\Microsoft\Windows\CurrentVersion\run	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\U:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\K:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\J:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\I:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\V:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\T:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\R:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\W:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\P:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\H:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\N:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\M:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\Z:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\Y:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\X:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\S:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\Q:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\O:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\L:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\G:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\F:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened (read-only)	\??\E:	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\autorun.inf	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSACCESS.EXE	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSPUB.EXE	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OIS.EXE	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\ONENOTE.EXE	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OUTLOOK.EXE	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\EXCEL.EXE	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\GROOVE.EXE	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\INFOPATH.EXE	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1808	540	WerFault.exe	14

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
540	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 1808	540	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe	28
PID 540 wrote to memory of 1808	540	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe	28
PID 540 wrote to memory of 1808	540	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe	28
PID 540 wrote to memory of 1808	540	850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe	28

C:\Users\Admin\AppData\Local\Temp\850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe
"C:\Users\Admin\AppData\Local\Temp\850961acfe78b9c81462b03085d383ab769b0fbee1008d43ca0882ac5d0e30d0.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 524
  2⤵
  - Program crash
  PID:1808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/540-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/540-55-0x0000000076931000-0x0000000076933000-memory.dmp

Filesize
8KB

Download
memory/540-56-0x0000000074AE1000-0x0000000074AE3000-memory.dmp

Filesize
8KB

Download
memory/540-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads