systembc | a0a5ebd512b7685798ac966c0b05415df9eff585a79af11c9ff99d7aa17e2101

max time kernel
299s
max time network
302s
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 05:02

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General

Target

2579be109c1035cb96942951710020a8.exe
Size

147KB
MD5

2579be109c1035cb96942951710020a8
SHA1

6987472967c8ce5e3d5fd6730a9da2964afacd10
SHA256

a0a5ebd512b7685798ac966c0b05415df9eff585a79af11c9ff99d7aa17e2101
SHA512

191ea3d7edc69f1cb9d1ec4967074667c5e1c6b02fdaa8bbc5a4414bf5ca00ccafadc49670c5b3065133915d78e482572545f1d0c8c3382e6a767c1f08a33a21
SSDEEP

3072:9NuSXw/c4JHdNX8PAzCABaxg0r27f8EjQspDNJJAksa:9oSXw/hfNXmAzbYg02Ok

Score

10^/10

systembc trojan upx

Malware Config

Extracted

Family

systembc

advertspace10.club:4044

logstat17.club:4044

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 1 IoCs

Processes:

oourwso.exe

pid process

4584 oourwso.exe

pid	process
4584	oourwso.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral3/memory/2252-0-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral3/memory/2252-2-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral3/memory/2252-5-0x0000000000400000-0x000000000044D000-memory.dmp	upx
C:\ProgramData\mgghajs\oourwso.exe	upx
behavioral3/memory/4584-19-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral3/memory/4584-23-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral3/memory/4584-25-0x0000000000400000-0x000000000044D000-memory.dmp	upx
behavioral3/memory/4584-30-0x0000000000400000-0x000000000044D000-memory.dmp	upx

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

58 api.ipify.org
59 api.ipify.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

flow	ioc
58	api.ipify.org
59	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

2579be109c1035cb96942951710020a8.exe

description	ioc	process
File created	C:\Windows\Tasks\oourwso.job	2579be109c1035cb96942951710020a8.exe
File opened for modification	C:\Windows\Tasks\oourwso.job	2579be109c1035cb96942951710020a8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2579be109c1035cb96942951710020a8.exe

pid process

2252 2579be109c1035cb96942951710020a8.exe
2252 2579be109c1035cb96942951710020a8.exe

pid	process
2252	2579be109c1035cb96942951710020a8.exe
2252	2579be109c1035cb96942951710020a8.exe

C:\Users\Admin\AppData\Local\Temp\2579be109c1035cb96942951710020a8.exe
"C:\Users\Admin\AppData\Local\Temp\2579be109c1035cb96942951710020a8.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2252

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=4060 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
1⤵
PID:3132

C:\ProgramData\mgghajs\oourwso.exe
C:\ProgramData\mgghajs\oourwso.exe start2
1⤵
- Executes dropped EXE
PID:4584

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Proxy

T1090

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\mgghajs\oourwso.exe
Filesize
147KB

MD5
2579be109c1035cb96942951710020a8

SHA1
6987472967c8ce5e3d5fd6730a9da2964afacd10

SHA256
a0a5ebd512b7685798ac966c0b05415df9eff585a79af11c9ff99d7aa17e2101

SHA512
191ea3d7edc69f1cb9d1ec4967074667c5e1c6b02fdaa8bbc5a4414bf5ca00ccafadc49670c5b3065133915d78e482572545f1d0c8c3382e6a767c1f08a33a21

Download Submit
memory/2252-18-0x0000000000AC0000-0x0000000000AF4000-memory.dmp

Filesize
208KB

Download
memory/2252-1-0x0000000000A10000-0x0000000000A11000-memory.dmp

Filesize
4KB

Download
memory/2252-2-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2252-5-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2252-8-0x0000000000AC0000-0x0000000000AF4000-memory.dmp

Filesize
208KB

Download
memory/2252-9-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2252-10-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2252-0-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4584-16-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/4584-19-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4584-23-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4584-25-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4584-30-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4584-31-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4584-32-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download