dbdcc4cbd95e6aaa23aca97c162c869e800aa687fd41dd062016381def8151aa

General

Target

2024-03-07_d662f14c994f642d32d55fab8cbdfb27_cryptolocker.exe
Size

63KB
MD5

d662f14c994f642d32d55fab8cbdfb27
SHA1

9405b3d9fc6d678a9b185b9cdfaeba86a5017c85
SHA256

dbdcc4cbd95e6aaa23aca97c162c869e800aa687fd41dd062016381def8151aa
SHA512

2a4dbdc7b61dee73db6f3e9e5de9f20f24f1a45733e5e187ee8c22b9529ad61c8286d7b7763a0381dc44b5de6cc56871c144a4766774216783836794e7926036
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsg:BbdDmjr+OtEvwDpjM8I

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2964-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2964-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2708-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224c-11.dat	CryptoLocker_rule2
behavioral1/memory/2708-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2964-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2964-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2708-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2708-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2964-1-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2964-14-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2708-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000a00000001224c-11.dat	UPX
behavioral1/memory/2708-25-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2708	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2964	2024-03-07_d662f14c994f642d32d55fab8cbdfb27_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 2964 wrote to memory of 2708	2964	2024-03-07_d662f14c994f642d32d55fab8cbdfb27_cryptolocker.exe	28
PID 2964 wrote to memory of 2708	2964	2024-03-07_d662f14c994f642d32d55fab8cbdfb27_cryptolocker.exe	28
PID 2964 wrote to memory of 2708	2964	2024-03-07_d662f14c994f642d32d55fab8cbdfb27_cryptolocker.exe	28
PID 2964 wrote to memory of 2708	2964	2024-03-07_d662f14c994f642d32d55fab8cbdfb27_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-07_d662f14c994f642d32d55fab8cbdfb27_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_d662f14c994f642d32d55fab8cbdfb27_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2708

Network

DNS

emrlogistics.com

asih.exe

Remote address:

8.8.8.8:53

Request

emrlogistics.com

IN A

Response

emrlogistics.com

IN CNAME

traff-6.hugedomains.com

traff-6.hugedomains.com

IN CNAME

hdr-nlb10-d66bbad0736f8259.elb.us-east-2.amazonaws.com

hdr-nlb10-d66bbad0736f8259.elb.us-east-2.amazonaws.com

IN A

3.140.13.188

hdr-nlb10-d66bbad0736f8259.elb.us-east-2.amazonaws.com

IN A

18.119.154.66
DNS

emrlogistics.com

asih.exe

Remote address:

8.8.8.8:53

Request

emrlogistics.com

IN A

3.140.13.188:443

emrlogistics.com

asih.exe

152 B
3
18.119.154.66:443

emrlogistics.com

asih.exe

152 B
3
3.140.13.188:443

emrlogistics.com

asih.exe

152 B
3
18.119.154.66:443

emrlogistics.com

asih.exe

152 B
3
3.140.13.188:443

emrlogistics.com

asih.exe

152 B
3
18.119.154.66:443

emrlogistics.com

asih.exe

152 B
3
3.140.13.188:443

emrlogistics.com

asih.exe

152 B
3
18.119.154.66:443

emrlogistics.com

asih.exe

52 B
1

8.8.8.8:53

emrlogistics.com

dns

asih.exe

124 B
193 B
2
1

DNS Request

emrlogistics.com

DNS Request

emrlogistics.com

DNS Response

3.140.13.188

18.119.154.66

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

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

Filesize
63KB

MD5
d1f26fade38113ecdb568fe58cd2f49b

SHA1
6d474ea8a16428a5462a42636881e618671e4c36

SHA256
27126cd0b267f819602f10bf46989709951786bfb27bca4cedce5114947e2558

SHA512
aeedbe7d90858e293c70184a25f08f6d416fdce283bdc93bc0bf91a89880bd2553f2156024d631cb88b9ba14bc4f66261020c36aa4b5db3c02b72f9ac5747048

Download Submit
memory/2708-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2708-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2964-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2964-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2964-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2964-6-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2964-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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