0a881ca39859c822a7d573ee06cf3d3b9d731bf27861a6c50531427c7eeb99ec

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/04/2024, 02:58

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General

Target

2024-04-10_c9b48c912347ee7180e3eb90920c832d_cryptolocker.exe
Size

61KB
MD5

c9b48c912347ee7180e3eb90920c832d
SHA1

5ec3c16f448276a4818aab6f808717e111cb65f2
SHA256

0a881ca39859c822a7d573ee06cf3d3b9d731bf27861a6c50531427c7eeb99ec
SHA512

d941d575e0728fb9979707bb98a2f7505d6da8f4449ae8e72df73ee8a73ec072ca773b9309945a2714c4ae82cf0bac7356478a07235f9f7434176593ce90c904
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJT/EZjy:ZVxkGOtEvwDpjcOH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023285-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	misid.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-04-10_c9b48c912347ee7180e3eb90920c832d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4008	misid.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 2596 wrote to memory of 4008	2596	2024-04-10_c9b48c912347ee7180e3eb90920c832d_cryptolocker.exe	95
PID 2596 wrote to memory of 4008	2596	2024-04-10_c9b48c912347ee7180e3eb90920c832d_cryptolocker.exe	95
PID 2596 wrote to memory of 4008	2596	2024-04-10_c9b48c912347ee7180e3eb90920c832d_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-04-10_c9b48c912347ee7180e3eb90920c832d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_c9b48c912347ee7180e3eb90920c832d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4008

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 --mojo-platform-channel-handle=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
1⤵
PID:4440

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\misid.exe

Filesize
61KB

MD5
fac60c20237edf0afccb05a1ada1a592

SHA1
1caa4472236ed142f7538c522357cb58e134de76

SHA256
38deb0c4c085372adc893610d3a0e126a501dd2bcb48ed437614beb1e9c3d732

SHA512
b41a0b7fadedb87b089f4aab22b94a78b0a398c00122428f0fca5dcfbc26ed6e55145978a102981b607ac5773e72f940ca64bacdca597d30607d408bbd5c0598

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
1KB

MD5
5e7fe1659a215e33b7aa26057f6f55d5

SHA1
6de1d4cce23659c5172f8ec1bf85ac64dacd8d43

SHA256
00496e61bac6b05f57253f53070c5ba5bc50c6703fe48a4a9fea8c16136bae34

SHA512
1a8f47f9a39a0bb4bec403388f2c512fdd8fa4838a94523163938a8f52e428e5a6e2cc2725b137f64d7074ea60c27a9c734d25adcf6f66db990750193687dc93

Download Submit
memory/2596-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2596-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2596-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2596-3-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2596-22-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4008-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/4008-19-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4008-21-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download