b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d

General

Target

b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
Size

151KB
MD5

a0dc7bfbc494076ab931c116f5fa59d0
SHA1

8aa992d509741575cbbe527b8e407a742150682b
SHA256

b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d
SHA512

7c19a339134f82f464ec35d1dda8479794c54a27fbad6b706a3d5b08fd38038e1e16ac632c9babeb332bba66c0517fe1a3f689ebdb2df5c2d3fb95b729575b73
SSDEEP

3072:8rvQX7y4Ssf8GeVOF8oZgtlB7vrEh6qVXp:8IyVc8oZOlBTrcTXp

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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.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	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.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)	\??\S:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\R:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\O:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\M:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\X:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\V:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\P:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\J:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\E:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\Z:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\L:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\I:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\Y:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\U:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\T:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\Q:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\N:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\K:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\H:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\G:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\W:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened (read-only)	\??\F:	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.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	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.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	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.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 2 IoCs

pid	pid_target	Process	procid_target
2828	444	WerFault.exe	80
4548	444	WerFault.exe	80

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
444	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
444	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 444 wrote to memory of 2828	444	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe	84
PID 444 wrote to memory of 2828	444	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe	84
PID 444 wrote to memory of 2828	444	b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe	84

C:\Users\Admin\AppData\Local\Temp\b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.exe
"C:\Users\Admin\AppData\Local\Temp\b19254ed80b2c054c9448f4ef612fca59c77d0323af6d3625bf9736d9633607d.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
- Suspicious use of WriteProcessMemory
PID:444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 1184
  2⤵
  - Program crash
  PID:2828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 1184
  2⤵
  - Program crash
  PID:4548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 444 -ip 444
1⤵
PID:4612

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
- Modifies registry class
PID:1888

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/444-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/444-134-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads