9b73f10d6388baeee3591888ecd27eaf80150765b668fb97483c18f57e51f4e2

General

Target

2024-06-29_4c0bdee5b79fb534344298fecd83829b_cryptolocker.exe
Size

40KB
MD5

4c0bdee5b79fb534344298fecd83829b
SHA1

25f5b1a124dde7dbc6a4cc520d0ab2e6e7827164
SHA256

9b73f10d6388baeee3591888ecd27eaf80150765b668fb97483c18f57e51f4e2
SHA512

e8bae2c6dced421a6506c44ba3df55ef14001ef07ab3f1dd34ab2d25d7626db75fd7b7a453fda6e9ae8ea40501ab75aa96c34714cad761145368f36083485567
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYabDbGx:qDdFJy3QMOtEvwDpjjWMl7Tdyx

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2416-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001227f-11.dat	CryptoLocker_rule2
behavioral1/memory/2416-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3004-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2416-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001227f-11.dat	CryptoLocker_set1
behavioral1/memory/2416-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3004-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/2416-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000c00000001227f-11.dat	UPX
behavioral1/memory/2416-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/3004-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
3004	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2416	2024-06-29_4c0bdee5b79fb534344298fecd83829b_cryptolocker.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2416-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c00000001227f-11.dat	upx
behavioral1/memory/2416-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3004-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 2416 wrote to memory of 3004	2416	2024-06-29_4c0bdee5b79fb534344298fecd83829b_cryptolocker.exe	28
PID 2416 wrote to memory of 3004	2416	2024-06-29_4c0bdee5b79fb534344298fecd83829b_cryptolocker.exe	28
PID 2416 wrote to memory of 3004	2416	2024-06-29_4c0bdee5b79fb534344298fecd83829b_cryptolocker.exe	28
PID 2416 wrote to memory of 3004	2416	2024-06-29_4c0bdee5b79fb534344298fecd83829b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-29_4c0bdee5b79fb534344298fecd83829b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-29_4c0bdee5b79fb534344298fecd83829b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3004

Network

DNS

emrlogistics.com

asih.exe

Remote address:

8.8.8.8:53

Request

emrlogistics.com

IN A

Response

emrlogistics.com

IN CNAME

traff-5.hugedomains.com

traff-5.hugedomains.com

IN CNAME

hdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.com

hdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.com

IN A

34.205.242.146

hdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.com

IN A

54.161.222.85

34.205.242.146:443

emrlogistics.com

asih.exe

152 B
3
54.161.222.85:443

emrlogistics.com

asih.exe

152 B
3
34.205.242.146:443

emrlogistics.com

asih.exe

152 B
3
54.161.222.85:443

emrlogistics.com

asih.exe

152 B
3
34.205.242.146:443

emrlogistics.com

asih.exe

152 B
3
54.161.222.85:443

emrlogistics.com

asih.exe

152 B
3
34.205.242.146:443

emrlogistics.com

asih.exe

152 B
3
54.161.222.85:443

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

34.205.242.146

54.161.222.85

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
40KB

MD5
dad2e9ab970cba73561037c783806223

SHA1
aa5aa49fecc201606cb5850f3409cf13f84feee9

SHA256
f6b500db736e86a219b186d70f932e0e84a3055658658e7c9d2dfed3d5132531

SHA512
9226331051a6223e2a420bfa8b125ab33df3eeb569ae90c60200ec31aec267930c49dff623edeac525fb1d36084a3b560a8377a2ff890474a88be37760b03441

Download Submit
memory/2416-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2416-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2416-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2416-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2416-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3004-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/3004-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3004-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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Downloads

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