835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e

General

Target

835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
Size

157KB
MD5

0ee7655dedbda18e2dbd35494ebab750
SHA1

8503ee09ada2872f4fa8a631fe336494a1e90767
SHA256

835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e
SHA512

957740ccb604b2783dc0fc0df998e13aaab0be6daef4e24f8f07cf6d50f35415a6bec1eb6ec038b91440c8ce1fedc78ed6ca028113396791253aef862c203600
SSDEEP

3072:iXWZffnl34DTjkw5dK09nsuCI3Tgt3UgVWzK7oknwo+Z:imll34DSwst32zfknb+Z

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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.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	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.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)	\??\Y:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\W:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\I:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\H:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\G:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\E:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\S:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\R:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\M:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\L:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\K:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\J:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\X:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\U:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\Q:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\N:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\Z:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\V:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\T:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\P:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\O:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened (read-only)	\??\F:	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.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	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\PROGRAM FILES (X86)\ADOBE\ACROBAT READER DC\READER\ACRORD32.EXE	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.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
4856	2820	WerFault.exe	80

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2820	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
2820	835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe

C:\Users\Admin\AppData\Local\Temp\835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe
"C:\Users\Admin\AppData\Local\Temp\835e0c8689723540ae697cf6998f5505c11a30f3fdf63e9be9cf8b62cacc638e.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:2820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2820 -s 1096
  2⤵
  - Program crash
  PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2820 -ip 2820
1⤵
PID:4904

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4784

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Hidden Files and Directories

1

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/2820-132-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2820-133-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads