e67ddca1a773f22e46f70d9e068f427ba32f1cd658c23b560c4f528bd12b2059

Analysis

max time kernel
150s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-03-2024 14:13

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General

Target

becfa1dc26af3f64973e4a79631dda5d.exe
Size

136KB
MD5

becfa1dc26af3f64973e4a79631dda5d
SHA1

a0a81b91701d088ae9b63df084247829f7627bd0
SHA256

e67ddca1a773f22e46f70d9e068f427ba32f1cd658c23b560c4f528bd12b2059
SHA512

defa949f9e33cd054f0eee307d01ee0c34ff64e91b1da6c75187aa2298c1a7f5d21b4f82e30dc84b1539a9970a52f1bcee796d2aa5148cca9a296fce49a91c5a
SSDEEP

3072:pEg9dCZNvCxib5JluHwsLzhhGw9Qy4pKjOVRG:pEg9dCZN6KJEQcNhGo468RG

Score

7^/10

Malware Config

Signatures

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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	becfa1dc26af3f64973e4a79631dda5d.exe

Executes dropped EXE 1 IoCs

pid	Process
4024	tt.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\tt.exe	becfa1dc26af3f64973e4a79631dda5d.exe

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

System Information Discovery
T1082

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4568	becfa1dc26af3f64973e4a79631dda5d.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 4024	4568	becfa1dc26af3f64973e4a79631dda5d.exe	98
PID 4568 wrote to memory of 4024	4568	becfa1dc26af3f64973e4a79631dda5d.exe	98
PID 4568 wrote to memory of 4024	4568	becfa1dc26af3f64973e4a79631dda5d.exe	98

C:\Users\Admin\AppData\Local\Temp\becfa1dc26af3f64973e4a79631dda5d.exe
"C:\Users\Admin\AppData\Local\Temp\becfa1dc26af3f64973e4a79631dda5d.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Windows\tt.exe
  "C:\Windows\tt.exe"
  2⤵
  - Executes dropped EXE
  PID:4024

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=4092 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:4128

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:\Windows\tt.exe

Filesize
119KB

MD5
fd46824b3d7d2b26a587b5d021cf4e00

SHA1
636b542d1c5e5376ee98b7b172e9f06841b87bab

SHA256
38aa381a338dbc024f0cb931fdfa81b5d6af7552ad7bcd08e67587845b481533

SHA512
d26bc3db57c6b22bac9fedfb8771bb381a3768b6c1ce12c2d5749aab8999025fc18ed9deb787d20fd7d48190881428a591209623e0b4b70cccc9bd501a818918

Download Submit
memory/4024-9-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4568-0-0x0000000000400000-0x0000000000424200-memory.dmp

Filesize
144KB

Download