1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598

Analysis

max time kernel
62s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 18:29

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General

Target

1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe
Size

764KB
MD5

0c5c4219d6c9825120bf03b6a1fe47cb
SHA1

d6424db75b3fb98c6d0a598202922ba3964e1b4c
SHA256

1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598
SHA512

9667279ba7c368223be6edec6fdb29fc2be16e9b9569509e3de74f0a2e3c9224a1d1d91f2584fbdb2068b4d7e88592c21091aef11375b2408556269ab48571e3
SSDEEP

12288:uTuo6lqeI2+uJvIgqckmpYYK/G2K/1lFoSE0vr1q6j+YpXHu1QhRDbSgxC:GjVeI2+ZsvcTUbFdHqgr3u1QhRDb4

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4900	launch.exe

Loads dropped DLL 2 IoCs

pid	Process
3108	1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe
3108	1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.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 FindShellTrayWindow 1 IoCs

pid	Process
3108	1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3108 wrote to memory of 4900	3108	1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe	81
PID 3108 wrote to memory of 4900	3108	1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe	81
PID 3108 wrote to memory of 4900	3108	1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe	81

C:\Users\Admin\AppData\Local\Temp\1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe
"C:\Users\Admin\AppData\Local\Temp\1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe"
1⤵
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3108
- C:\Users\Admin\AppData\Local\Temp\DM\1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe\CKVRiN9T1D\launch.exe
  C:\Users\Admin\AppData\Local\Temp\DM\1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe\CKVRiN9T1D\launch.exe "e1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe" "1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe" "4f1861067e0b446c969491136a398468" dec
  2⤵
  - Executes dropped EXE
  PID:4900

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\DM\1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe\CKVRiN9T1D\launch.exe

Filesize
117KB

MD5
04564d86553fcff6631250752e9b9b9b

SHA1
3093e6848fbfdb71f948fdd50f588e46bc760f31

SHA256
2f1ef4466a10d6203902ce54e2d9df9f40c35789eaa7f5ae15ce277fbba5c82b

SHA512
e96abb892610d6289f818ddf2ec76515a817ce4eebd977a6564850cb6b0092405adc85b4fcae299b03fd5897a5de65b224cd891ff07c24395f1c681bcc650887

Download Submit
C:\Users\Admin\AppData\Local\Temp\DM\1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe\CKVRiN9T1D\launch.exe

Filesize
117KB

MD5
04564d86553fcff6631250752e9b9b9b

SHA1
3093e6848fbfdb71f948fdd50f588e46bc760f31

SHA256
2f1ef4466a10d6203902ce54e2d9df9f40c35789eaa7f5ae15ce277fbba5c82b

SHA512
e96abb892610d6289f818ddf2ec76515a817ce4eebd977a6564850cb6b0092405adc85b4fcae299b03fd5897a5de65b224cd891ff07c24395f1c681bcc650887

Download Submit
C:\Users\Admin\AppData\Local\Temp\DM\1b91a3b9142996542cfebd28442d082b90fe9e244bdb6bedf20232f648e66598.exe\CKVRiN9T1D\launch.exe.config

Filesize
340B

MD5
91629f6b28cbe2b52bb86cb5af3bdbca

SHA1
35fb57ac58c9eb0668f5832a588d9f81e040568b

SHA256
589c122996fadc118731c6f983c5d3b498c4b4b59700ea548f4cfb79e4eaaeeb

SHA512
f08382296696173784841a163c73c19e7bd674a08a053c0434d55696f45039721925e5d829e4bbbf71b07385d1b88c5ea241b8247eb0d81bf381205977bd14c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslD6CF.tmp\NSISdl.dll

Filesize
14KB

MD5
a5f8399a743ab7f9c88c645c35b1ebb5

SHA1
168f3c158913b0367bf79fa413357fbe97018191

SHA256
dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9

SHA512
824e567f5211bf09c7912537c7836d761b0934207612808e9a191f980375c6a97383dbc6b4a7121c6b5f508cbfd7542a781d6b6b196ca24841f73892eec5e977

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslD6CF.tmp\pwgen.dll

Filesize
16KB

MD5
a555472395178ac8c733d90928e05017

SHA1
f44b192d66473f01a6540aaec4b6c9ac4c611d35

SHA256
82ae08fced4a1f9a7df123634da5f4cb12af4593a006bef421a54739a2cbd44e

SHA512
e6d87b030c45c655d93b2e76d7437ad900df5da2475dd2e6e28b6c872040491e80f540b00b6091d16bc8410bd58a1e82c62ee1b17193ef8500a153d4474bb80a

Download Submit
memory/4900-138-0x0000000073390000-0x0000000073941000-memory.dmp

Filesize
5.7MB

Download
memory/4900-139-0x0000000073390000-0x0000000073941000-memory.dmp

Filesize
5.7MB

Download