38c3868a6f845d0591ecf9029a5f8de4cbef117499d7e8bfd09ed2de5b558430

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 04:26 UTC

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General

Target

2024-04-21_c11906a69ba95b1fd9e434b8fd6204cf_cryptolocker.exe
Size

55KB
MD5

c11906a69ba95b1fd9e434b8fd6204cf
SHA1

0fbffb0395b6ecb5f6bd647310578ff19a2a881a
SHA256

38c3868a6f845d0591ecf9029a5f8de4cbef117499d7e8bfd09ed2de5b558430
SHA512

fa69db4ce10e43a0456f0373a5192d1832d5ba974e050e720aab55d0c088b35c31a4eddae1f4a0a57c8190200c0700cd35a85690d98eddedc87701decae7f704
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2LJ2:X6QFElP6n+gJBMOtEvwDpjBtE1yILJ2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012247-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012247-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2264	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2744	2024-04-21_c11906a69ba95b1fd9e434b8fd6204cf_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2264	2744	2024-04-21_c11906a69ba95b1fd9e434b8fd6204cf_cryptolocker.exe	28
PID 2744 wrote to memory of 2264	2744	2024-04-21_c11906a69ba95b1fd9e434b8fd6204cf_cryptolocker.exe	28
PID 2744 wrote to memory of 2264	2744	2024-04-21_c11906a69ba95b1fd9e434b8fd6204cf_cryptolocker.exe	28
PID 2744 wrote to memory of 2264	2744	2024-04-21_c11906a69ba95b1fd9e434b8fd6204cf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-21_c11906a69ba95b1fd9e434b8fd6204cf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_c11906a69ba95b1fd9e434b8fd6204cf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2264

Network

DNS

emrlogistics.com

asih.exe

Remote address:

8.8.8.8:53

Request

emrlogistics.com

IN A

Response

emrlogistics.com

IN CNAME

traff-3.hugedomains.com

traff-3.hugedomains.com

IN CNAME

hdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.com

hdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.com

IN A

3.18.7.81

hdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.com

IN A

3.19.116.195

3.18.7.81:443

emrlogistics.com

asih.exe

152 B
3
3.19.116.195:443

emrlogistics.com

asih.exe

152 B
3
3.18.7.81:443

emrlogistics.com

asih.exe

152 B
3
3.19.116.195:443

emrlogistics.com

asih.exe

152 B
3
3.18.7.81:443

emrlogistics.com

asih.exe

152 B
3
3.19.116.195:443

emrlogistics.com

asih.exe

152 B
3
3.18.7.81:443

emrlogistics.com

asih.exe

152 B
3
3.19.116.195:443

emrlogistics.com

asih.exe

52 B
1

8.8.8.8:53

emrlogistics.com

dns

asih.exe

62 B
192 B
1
1

DNS Request

emrlogistics.com

DNS Response

3.18.7.81

3.19.116.195

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
56KB

MD5
d611e7990816d8389de3650007f6d33e

SHA1
8c133a265f1af53b72e0e04fc95bd12ff158211b

SHA256
336b962e4fc2b3cab929452ba566acfcc3b8577a164461573228ff1e334a378d

SHA512
4aeb97c9b1e464a100a124ba931bac28ee8ec5633f2d350c36dc0560bad91857641a0904675d9538f0882be72a43a2ea8101bdc99eb60345017271a74233797d

Download Submit
memory/2264-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2264-20-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2744-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2744-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2744-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download