26d7299dd5c65d68c0324895b55143808bd4bcf4c5d144085ec83729387ba553

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14/05/2024, 03:52

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General

Target

2024-05-14_6713fd6d9bcb3dd7e5cdb6a915a2a26e_cryptolocker.exe
Size

54KB
MD5

6713fd6d9bcb3dd7e5cdb6a915a2a26e
SHA1

cf9553dfb27db9e167aded6d543600ae90cf9c38
SHA256

26d7299dd5c65d68c0324895b55143808bd4bcf4c5d144085ec83729387ba553
SHA512

eab19b62464ba36d52037985aff6d5c18be9da8d81f24aeada6c65ec79b6177e05e6b0caedbb7b3ffcd9fa23dac0f5ddd496743731cddca4e77a7e89c15a4a4f
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9Xv+mb6uXs7:bIDOw9a0DwitDZzc16t

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000235db-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-05-14_6713fd6d9bcb3dd7e5cdb6a915a2a26e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3268	lossy.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 3268	2312	2024-05-14_6713fd6d9bcb3dd7e5cdb6a915a2a26e_cryptolocker.exe	91
PID 2312 wrote to memory of 3268	2312	2024-05-14_6713fd6d9bcb3dd7e5cdb6a915a2a26e_cryptolocker.exe	91
PID 2312 wrote to memory of 3268	2312	2024-05-14_6713fd6d9bcb3dd7e5cdb6a915a2a26e_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-05-14_6713fd6d9bcb3dd7e5cdb6a915a2a26e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-14_6713fd6d9bcb3dd7e5cdb6a915a2a26e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3268

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4040,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4104 /prefetch:8
1⤵
PID:1064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
54KB

MD5
9e254b4a45e9444119d8f585fe6993a1

SHA1
b00994085a2ed4a2e0d2b00b33791c43ccf030a8

SHA256
1e9bcaa3f6658f249cebbe8cf5dd5e55afcc4c01cc8b2418adecce56b0053d29

SHA512
3b3751a91d5ee6d171c76f431c553fa2a82c9f6f1d4abe49927dca385ab3e2feff165817adcb3dec5ed3b728b924dd70aa90fa30e07ce9b7090f15a7954c7140

Download Submit
memory/2312-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2312-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2312-2-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/3268-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download