711c05bc6ec2b9cef23593d72207307b5edb63ab71351d0063ece0635a2aceba

General

Target

2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe
Size

37KB
MD5

52373466b7674e49e7b8cfafc00bae34
SHA1

42946ad853b08372538eaed7bca7c7d6435440a4
SHA256

711c05bc6ec2b9cef23593d72207307b5edb63ab71351d0063ece0635a2aceba
SHA512

2c78c5a34a77493451fda92880c845bbf0fffc03df1289c1d078057d961165fffc598c08307f1bb63a71e6e722bba4ce0d6481665d5cadbfac17df5bf6490a6b
SSDEEP

768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axK3VKLz:qUmnpomddpMOtEvwDpjjaYaQQz

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1716-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001226d-15.dat	CryptoLocker_rule2
behavioral1/memory/3060-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3060-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1716-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001226d-15.dat	CryptoLocker_set1
behavioral1/memory/3060-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3060-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/1716-8-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral1/files/0x000b00000001226d-15.dat	UPX
behavioral1/memory/3060-16-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral1/memory/3060-26-0x0000000000500000-0x000000000050F000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
3060	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1716	2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1716-8-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000b00000001226d-15.dat	upx
behavioral1/memory/3060-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/3060-26-0x0000000000500000-0x000000000050F000-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 1716 wrote to memory of 3060	1716	2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe	28
PID 1716 wrote to memory of 3060	1716	2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe	28
PID 1716 wrote to memory of 3060	1716	2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe	28
PID 1716 wrote to memory of 3060	1716	2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3060

Network

DNS

emrlogistics.com

asih.exe

Remote address:

8.8.8.8:53

Request

emrlogistics.com

IN A

Response

emrlogistics.com

IN CNAME

traff-2.hugedomains.com

traff-2.hugedomains.com

IN CNAME

hdr-nlb5-4e815dd67a14bf7f.elb.us-east-2.amazonaws.com

hdr-nlb5-4e815dd67a14bf7f.elb.us-east-2.amazonaws.com

IN A

3.130.204.160

hdr-nlb5-4e815dd67a14bf7f.elb.us-east-2.amazonaws.com

IN A

3.130.253.23

3.130.204.160:443

emrlogistics.com

asih.exe

152 B
3
3.130.253.23:443

emrlogistics.com

asih.exe

152 B
3
3.130.204.160:443

emrlogistics.com

asih.exe

152 B
3
3.130.253.23:443

emrlogistics.com

asih.exe

152 B
3
3.130.204.160:443

emrlogistics.com

asih.exe

152 B
3
3.130.253.23:443

emrlogistics.com

asih.exe

152 B
3
3.130.204.160:443

emrlogistics.com

asih.exe

152 B
3
3.130.253.23:443

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

3.130.204.160

3.130.253.23

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

Replay Monitor

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Downloads

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

Filesize
37KB

MD5
38ddb2b13f992dcf89181735e0c4f3a5

SHA1
902840570b4f2c0b5d36cd77e9be44323329984c

SHA256
c0d9e0dc8ab794c3413129c9fc90058918a103c36e3a4d09d539c0c9f91cfc6b

SHA512
a870d58c22b7843b7050c00586ba567523ebab52a588925425fe3cf76dc48d6fd648c1c5388304e38a3e2e3fec199efa1519598e4a75e16fd6621313523e0a1e

Download Submit
memory/1716-8-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1716-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1716-1-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1716-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3060-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3060-18-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/3060-25-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/3060-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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