f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d

Analysis

max time kernel
131s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 20:21

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General

Target

f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.exe
Size

3.1MB
MD5

bc1bd9c04db9de0ae9aace02ef76c738
SHA1

fc3dc29b42afc81b40cc42d2c55c2c3ef2c87dd6
SHA256

f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d
SHA512

52495a42ea57f1371842cbe7c791008892dc2dbaf4ad8d18395cbdfaee44632e62523167665673bbeca3e588442e373eff6a480c6acf5841727b5ea442cb9550
SSDEEP

98304:BAfbLA5wxEPASLkVmiJogPnNweHIBebSivZnN:BUkmIASQDJoEye2Ub

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2160	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp

Loads dropped DLL 2 IoCs

pid	Process
2160	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp
2160	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp

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 4 IoCs

pid	Process
2160	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp
2160	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp
2160	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp
2160	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2160	2104	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.exe	80
PID 2104 wrote to memory of 2160	2104	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.exe	80
PID 2104 wrote to memory of 2160	2104	f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.exe	80

C:\Users\Admin\AppData\Local\Temp\f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.exe
"C:\Users\Admin\AppData\Local\Temp\f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\is-NKER1.tmp\f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NKER1.tmp\f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp" /SL5="$201CA,2529716,70144,C:\Users\Admin\AppData\Local\Temp\f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:2160

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\AppData\Local\Temp\is-DAM0H.tmp\DownLib.dll

Filesize
183KB

MD5
db25dfdd4c1f2b65c68a230881072695

SHA1
94cd6a3438041f0e61b0a1bea7b66461854efe69

SHA256
1b66aaf1e7e3c493dd96af3b7442ea60072f6e93ba45281eacd31a14ca7e7e73

SHA512
db69e4ab2218856e5184d9094e7e39705b83e3efdc15225067205c8faf6e5836145364f1d509192defa3b48864e72b9f8c0f2dc53a7adb2b86c655318b7afc2c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DAM0H.tmp\DownLib.dll

Filesize
183KB

MD5
db25dfdd4c1f2b65c68a230881072695

SHA1
94cd6a3438041f0e61b0a1bea7b66461854efe69

SHA256
1b66aaf1e7e3c493dd96af3b7442ea60072f6e93ba45281eacd31a14ca7e7e73

SHA512
db69e4ab2218856e5184d9094e7e39705b83e3efdc15225067205c8faf6e5836145364f1d509192defa3b48864e72b9f8c0f2dc53a7adb2b86c655318b7afc2c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NKER1.tmp\f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp

Filesize
1.2MB

MD5
e7106fbf42fbc6d5b08a18ada4f781b4

SHA1
36d4a629f79d772c0b0df8bd2ae2ea09108d239d

SHA256
64e1f1fa7d91920b17bc7bc679a4cd8d87ff5b104318b6921bb6bf6a19055635

SHA512
adf876296a952aadeb4f25211c0939bf5a278809b5d3007ad7e26c5d4975e7684d242c1b3de796efd474a47cb7ecdb80f9047935924a1108bf0e4d7c973d1845

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NKER1.tmp\f4b5afff27b5217dd1a48b957d0fef9f0bbe714a13a5e5955c8e6f8154e6400d.tmp

Filesize
1.2MB

MD5
e7106fbf42fbc6d5b08a18ada4f781b4

SHA1
36d4a629f79d772c0b0df8bd2ae2ea09108d239d

SHA256
64e1f1fa7d91920b17bc7bc679a4cd8d87ff5b104318b6921bb6bf6a19055635

SHA512
adf876296a952aadeb4f25211c0939bf5a278809b5d3007ad7e26c5d4975e7684d242c1b3de796efd474a47cb7ecdb80f9047935924a1108bf0e4d7c973d1845

Download Submit
memory/2104-132-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2104-137-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2104-141-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2160-140-0x0000000003C10000-0x0000000003C47000-memory.dmp

Filesize
220KB

Download