fa0a2491fc93cc4156240cf191bceb719f63dbd1e6f0f4383e57a3afa7bd5daa

Analysis

max time kernel
140s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 00:05

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General

Target

fos.exe
Size

28KB
MD5

423f6089af8028fa1c1c3b4642eb894a
SHA1

f4c322bc51b125640311b3d57df185587b998441
SHA256

141b78a83055d74a60e23c272a4e1b96165749d3215ae4b28328b6684375013e
SHA512

a2772d2d9b50019f055144b4811d8899cf853655bb91417074c9902780fcfc4be5b0277ae5b8be90fe47395448f16f5691fe3c2738cc4f8b1ae0e63f1a65843e
SSDEEP

384:8SGAYRQ96WHp8PdjmEZXasjtqSp/7H4NPV+Kn0W9B0objkgRV8:uzmMC87as5/7HW0W08YD

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral6/memory/4820-0-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral6/memory/4820-3-0x0000000000400000-0x000000000041C000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fos.exe

C:\Users\Admin\AppData\Local\Temp\fos.exe
"C:\Users\Admin\AppData\Local\Temp\fos.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4820

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 --field-trial-handle=4628,i,16315016104747277319,5510969007830467313,262144 --variations-seed-version --mojo-platform-channel-handle=4060 /prefetch:8
1⤵
PID:3624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4820-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4820-1-0x0000000000A30000-0x0000000000B88000-memory.dmp

Filesize
1.3MB

Download
memory/4820-2-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/4820-3-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4820-5-0x0000000040000000-0x00000000400C7000-memory.dmp

Filesize
796KB

Download
memory/4820-7-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/4820-6-0x0000000000A30000-0x0000000000B88000-memory.dmp

Filesize
1.3MB

Download