55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948

Analysis

max time kernel
91s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
24-05-2022 00:56

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General

Target

55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe
Size

337KB
MD5

8080425de714595a2d124403a0cb3d9f
SHA1

96d303f9e64ce8b08ffdd941e0c6e5bab6cc5808
SHA256

55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948
SHA512

006b83b8e55ee3076f45a65f1011129d73f8462a26c2b16d86735bdfef3b55aa261e903da44d1cbd381123fe83b1735eebd6885b3e776312653f0f43a5d55ff9

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

start.exe

pid process

2596 start.exe

pid	process
2596	start.exe

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

Processes:

55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

start.exe

pid process

2596 start.exe
2596 start.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

start.exe

pid process

2596 start.exe

pid	process
2596	start.exe
2596	start.exe

pid	process
2596	start.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe

description	pid	process	target process
PID 5100 wrote to memory of 2596	5100	55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe	start.exe
PID 5100 wrote to memory of 2596	5100	55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe	start.exe
PID 5100 wrote to memory of 2596	5100	55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe	start.exe

C:\Users\Admin\AppData\Local\Temp\55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe
"C:\Users\Admin\AppData\Local\Temp\55bcc7fd77f97c3d732ab20d59c7a322aa2b6cc6015e8db7de5c0fd6bbdb2948.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5100

C:\Users\Admin\AppData\Local\Temp\RarSFX0\start.exe
"C:\Users\Admin\AppData\Local\Temp\RarSFX0\start.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
PID:2596

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\start.exe
Filesize
41KB

MD5
2b736720e2c2674b8037a03266574048

SHA1
b0fccf6893442467f1c8a7f05783d1f1ea27fa74

SHA256
27d22e2fb09e101ec13d9dc16bf743d6a49111c3205ea9127d1733696c3afbe1

SHA512
70c6458db107dc7254abc61508f014fe40f11a733d043cc1388113ef2887dcb666656d65a51d61fa65fff25ede393e4a99bf6a9976a895255f5807e57abfad94

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\start.exe
Filesize
41KB

MD5
2b736720e2c2674b8037a03266574048

SHA1
b0fccf6893442467f1c8a7f05783d1f1ea27fa74

SHA256
27d22e2fb09e101ec13d9dc16bf743d6a49111c3205ea9127d1733696c3afbe1

SHA512
70c6458db107dc7254abc61508f014fe40f11a733d043cc1388113ef2887dcb666656d65a51d61fa65fff25ede393e4a99bf6a9976a895255f5807e57abfad94

Download Submit
memory/2596-130-0x0000000000000000-mapping.dmp

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