8d6b3834c8d4c74a21533dc6744732b41c0cc9bee7b68dea1244e063064dd050

General

Target

2024-03-07_bb2163730d218ecd5129e2159049bd6f_cryptolocker.exe
Size

88KB
MD5

bb2163730d218ecd5129e2159049bd6f
SHA1

e9c17d5890f92f809b4b9ec9c4745ac66217364c
SHA256

8d6b3834c8d4c74a21533dc6744732b41c0cc9bee7b68dea1244e063064dd050
SHA512

89ca4ff2ae32c53372020c0f33226fd1fb7420e5821b268cb9d4fb804df5ed4232355ece760ce725f0e08ac1dd8368a1a6a7ad049c3a1d0db122602c81e324c1
SSDEEP

768:qkmnjFom/kLyMro2GtOOtEvwDpjeY10Y/YMsvlMdwPK80GQuchoIgtIJY/vG:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgC

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/848-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224a-11.dat	CryptoLocker_rule2
behavioral1/memory/848-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2240-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2240-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/848-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001224a-11.dat	CryptoLocker_set1
behavioral1/memory/848-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2240-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2240-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/848-0-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral1/files/0x000a00000001224a-11.dat	UPX
behavioral1/memory/848-14-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral1/memory/2240-16-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral1/memory/2240-26-0x0000000000500000-0x000000000050F000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2240	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
848	2024-03-07_bb2163730d218ecd5129e2159049bd6f_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/848-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000a00000001224a-11.dat	upx
behavioral1/memory/848-14-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2240-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2240-26-0x0000000000500000-0x000000000050F000-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 848 wrote to memory of 2240	848	2024-03-07_bb2163730d218ecd5129e2159049bd6f_cryptolocker.exe	27
PID 848 wrote to memory of 2240	848	2024-03-07_bb2163730d218ecd5129e2159049bd6f_cryptolocker.exe	27
PID 848 wrote to memory of 2240	848	2024-03-07_bb2163730d218ecd5129e2159049bd6f_cryptolocker.exe	27
PID 848 wrote to memory of 2240	848	2024-03-07_bb2163730d218ecd5129e2159049bd6f_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-03-07_bb2163730d218ecd5129e2159049bd6f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_bb2163730d218ecd5129e2159049bd6f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:848
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2240

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

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
88KB

MD5
2c26fabd8413a079c031f539b2fac19c

SHA1
8d19b74ccdfa076ca19828f5c94037a6cd300971

SHA256
895d6a96da833cae7232de94fd99c859ebebd374ecb8091ab64374fa2aa0fb9e

SHA512
9a88724b893e1dd2e792564b08a1c00965acd75475219ac13677ca27cd3235364967c824f00f8d174bcef2215b9b8962e5ecf60790bc07c6f28cd292ded4e319

Download Submit
memory/848-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/848-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/848-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/848-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/848-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2240-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2240-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2240-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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Downloads

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