afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792

General

Target

afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
Size

274KB
MD5

5d3f99c43bdc1205b59da497b27cf629
SHA1

d87a58e13ce96428065b4ea65b15671a97d1ad4f
SHA256

afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792
SHA512

26a6d247f098a3e30995a44c786427d64466b0e6dbdb9f8875d1961a4d8f48fdb812ea838ee520ac7bcb7afc81c2a483ae2a6d7485f36e983f9a889ec9b68011
SSDEEP

6144:mj2NA2rgIZseLlJfOMBfcuJwam6ZqRrOuic4pe:+b2rgIZx9OyLWkqR/4p

Score

9^/10

evasion persistence

Malware Config

Signatures

Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	write.exe

Executes dropped EXE 2 IoCs

pid	Process
3552	write.exe
1320	write.exe

Looks for VMWare Tools registry key 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	write.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	write.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	write.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.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\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\write.exe = "C:\\Users\\Admin\\AppData\\Roaming\\BLD93115RWR\\write.exe"	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\BLD93115RWR.job	write.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
3552	write.exe
3552	write.exe
3552	write.exe
3552	write.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	388	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
Token: SeDebugPrivilege	1320	write.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 5044 wrote to memory of 388	5044	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	82
PID 388 wrote to memory of 3552	388	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	83
PID 388 wrote to memory of 3552	388	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	83
PID 388 wrote to memory of 3552	388	afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe	83
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85
PID 3552 wrote to memory of 1320	3552	write.exe	85

C:\Users\Admin\AppData\Local\Temp\afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
"C:\Users\Admin\AppData\Local\Temp\afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Users\Admin\AppData\Local\Temp\afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe
  "C:\Users\Admin\AppData\Local\Temp\afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:388
- - C:\Users\Admin\AppData\Roaming\BLD93115RWR\write.exe
    C:\Users\Admin\AppData\Roaming\BLD93115RWR\write.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3552
  - - C:\Users\Admin\AppData\Roaming\BLD93115RWR\write.exe
      C:\Users\Admin\AppData\Roaming\BLD93115RWR\write.exe
      4⤵
      Looks for VirtualBox Guest Additions in registry
      Executes dropped EXE
      Looks for VMWare Tools registry key
      Checks BIOS information in registry
      Drops file in Windows directory
      Suspicious use of AdjustPrivilegeToken
      PID:1320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\BLD93115RWR\write.exe

Filesize
274KB

MD5
5d3f99c43bdc1205b59da497b27cf629

SHA1
d87a58e13ce96428065b4ea65b15671a97d1ad4f

SHA256
afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792

SHA512
26a6d247f098a3e30995a44c786427d64466b0e6dbdb9f8875d1961a4d8f48fdb812ea838ee520ac7bcb7afc81c2a483ae2a6d7485f36e983f9a889ec9b68011

Download Submit
C:\Users\Admin\AppData\Roaming\BLD93115RWR\write.exe

Filesize
274KB

MD5
5d3f99c43bdc1205b59da497b27cf629

SHA1
d87a58e13ce96428065b4ea65b15671a97d1ad4f

SHA256
afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792

SHA512
26a6d247f098a3e30995a44c786427d64466b0e6dbdb9f8875d1961a4d8f48fdb812ea838ee520ac7bcb7afc81c2a483ae2a6d7485f36e983f9a889ec9b68011

Download Submit
C:\Users\Admin\AppData\Roaming\BLD93115RWR\write.exe

Filesize
274KB

MD5
5d3f99c43bdc1205b59da497b27cf629

SHA1
d87a58e13ce96428065b4ea65b15671a97d1ad4f

SHA256
afa2e8be96ca86a8b12dec4f6fc12958867219abe09966cd6b39000247ede792

SHA512
26a6d247f098a3e30995a44c786427d64466b0e6dbdb9f8875d1961a4d8f48fdb812ea838ee520ac7bcb7afc81c2a483ae2a6d7485f36e983f9a889ec9b68011

Download Submit
memory/388-134-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/388-136-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/388-137-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/388-141-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1320-148-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3552-142-0x0000000002230000-0x00000000022AB000-memory.dmp

Filesize
492KB

Download
memory/3552-146-0x0000000002230000-0x00000000022AB000-memory.dmp

Filesize
492KB

Download
memory/5044-132-0x0000000002250000-0x00000000022CB000-memory.dmp

Filesize
492KB

Download
memory/5044-135-0x0000000002250000-0x00000000022CB000-memory.dmp

Filesize
492KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads