b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48

Analysis

max time kernel
42s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
12/10/2022, 17:32

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General

Target

b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe
Size

104KB
MD5

7b925a88d2d04f5dc7d58fe458a8736d
SHA1

6b83e61b17ab0c25c702a5165b6ed3ff26b0d73a
SHA256

b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48
SHA512

26cccae5660e77b56f3d23c4f5a883158132244c02cd4522984876b399c762b736d8e8d3a3de8dc3836423fac1baefca44a244c5aa734faf312ecbab2ea1e661
SSDEEP

1536:h3gxGx3PtbkuOL5vLJWnYlrbPMPXvPWPRPpPLCOzSo4BszKhyMee+FWMktOOqw9F:5gxQdErlLCO14BiKhyMN+FPLQ

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
840	zfjaof.exe

Loads dropped DLL 2 IoCs

pid	Process
1272	b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe
1272	b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1272	b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe
840	zfjaof.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 840	1272	b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe	27
PID 1272 wrote to memory of 840	1272	b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe	27
PID 1272 wrote to memory of 840	1272	b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe	27
PID 1272 wrote to memory of 840	1272	b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe	27

C:\Users\Admin\AppData\Local\Temp\b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe
"C:\Users\Admin\AppData\Local\Temp\b8a0b7500374df04704155ebd39c263aef17b5efeb8d65e38b0719d0492b0c48.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Users\Admin\zfjaof.exe
  "C:\Users\Admin\zfjaof.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\zfjaof.exe

Filesize
104KB

MD5
4686bd22e435ba0d7730a0780174049b

SHA1
10d023d763da79cf23cc2a985dcaf5da1baec9c8

SHA256
60d924438c04fcb381ea50f17dbb7ef5757166c981b1a3127cd87f17a051d09c

SHA512
003a32748e751165a0853b68dd81db39585f692b2bbe8ce714e84c3fc575377b8c7d0f856444f4678c1b69ba65d601c61ba532063feaf451cbe086b4ba422db2

Download Submit
C:\Users\Admin\zfjaof.exe

Filesize
104KB

MD5
4686bd22e435ba0d7730a0780174049b

SHA1
10d023d763da79cf23cc2a985dcaf5da1baec9c8

SHA256
60d924438c04fcb381ea50f17dbb7ef5757166c981b1a3127cd87f17a051d09c

SHA512
003a32748e751165a0853b68dd81db39585f692b2bbe8ce714e84c3fc575377b8c7d0f856444f4678c1b69ba65d601c61ba532063feaf451cbe086b4ba422db2

Download Submit
\Users\Admin\zfjaof.exe

Filesize
104KB

MD5
4686bd22e435ba0d7730a0780174049b

SHA1
10d023d763da79cf23cc2a985dcaf5da1baec9c8

SHA256
60d924438c04fcb381ea50f17dbb7ef5757166c981b1a3127cd87f17a051d09c

SHA512
003a32748e751165a0853b68dd81db39585f692b2bbe8ce714e84c3fc575377b8c7d0f856444f4678c1b69ba65d601c61ba532063feaf451cbe086b4ba422db2

Download Submit
\Users\Admin\zfjaof.exe

Filesize
104KB

MD5
4686bd22e435ba0d7730a0780174049b

SHA1
10d023d763da79cf23cc2a985dcaf5da1baec9c8

SHA256
60d924438c04fcb381ea50f17dbb7ef5757166c981b1a3127cd87f17a051d09c

SHA512
003a32748e751165a0853b68dd81db39585f692b2bbe8ce714e84c3fc575377b8c7d0f856444f4678c1b69ba65d601c61ba532063feaf451cbe086b4ba422db2

Download Submit
memory/1272-56-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download