socks5systemz | 238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06

General

Target

238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe
Size

4.8MB
MD5

4f7e4b35479a942e662355c8e2e6add6
SHA1

388a3f5f5221929058b545742546a1fe15f1978f
SHA256

238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06
SHA512

9be7b1c80d649feb86572829a309fca54ada22cb706ca3e932c27c2f5c02afdf8bf35235c7d976eaa0e4e0fdd28e6623a26c14fef52503823327f0ad23cec514
SSDEEP

98304:mee/xuovuJhRtfUoMpxe4VPGfiqcZtGqxFRt07AVlleRZ1m/VRad:E/IoWJyrBP0y//RtfVls9m/zad

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bfzurbq.com

http://bfzurbq.com/search/?q=67e28dd86a5ef62a130aa5197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f88ff11c5e693

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2420-93-0x00000000022B0000-0x0000000002352000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

2332 238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
2460 m4atomp3converter.exe
2420 m4atomp3converter.exe

pid	process
2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
2460	m4atomp3converter.exe
2420	m4atomp3converter.exe

Loads dropped DLL 5 IoCs

Processes:

238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

pid	process
1504	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe
2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 141.98.234.31
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

pid process

2332 238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

description	pid	process	target process
PID 1504 wrote to memory of 2332	1504	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
PID 1504 wrote to memory of 2332	1504	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
PID 1504 wrote to memory of 2332	1504	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
PID 1504 wrote to memory of 2332	1504	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
PID 1504 wrote to memory of 2332	1504	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
PID 1504 wrote to memory of 2332	1504	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
PID 1504 wrote to memory of 2332	1504	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
PID 2332 wrote to memory of 2460	2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	m4atomp3converter.exe
PID 2332 wrote to memory of 2460	2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	m4atomp3converter.exe
PID 2332 wrote to memory of 2460	2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	m4atomp3converter.exe
PID 2332 wrote to memory of 2460	2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	m4atomp3converter.exe
PID 2332 wrote to memory of 2420	2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	m4atomp3converter.exe
PID 2332 wrote to memory of 2420	2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	m4atomp3converter.exe
PID 2332 wrote to memory of 2420	2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	m4atomp3converter.exe
PID 2332 wrote to memory of 2420	2332	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe
"C:\Users\Admin\AppData\Local\Temp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1504

C:\Users\Admin\AppData\Local\Temp\is-RJMK4.tmp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
"C:\Users\Admin\AppData\Local\Temp\is-RJMK4.tmp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp" /SL5="$4010A,4783767,54272,C:\Users\Admin\AppData\Local\Temp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2332

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i
3⤵
- Executes dropped EXE
PID:2460

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s
3⤵
- Executes dropped EXE
PID:2420

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
Filesize
2.9MB

MD5
6b2f758369530e56bff88cd776bb570b

SHA1
850fb4091f0d2ef1460e1b9828646143f46781df

SHA256
407ed914d71b1b92fb655aba6542958b5cbaed3e9b0e2d81261a99b74de799b0

SHA512
9cdd4fb5772a6ae632c186b5a4998fcb337b59f2d922fa2441ae56d1ee73142a3d77d7c78c9c7cc102fbb48198d8c20df40ed102147f6c8c6a3734ea890e48bf

Download Submit
\Users\Admin\AppData\Local\Temp\is-7AEN3.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-7AEN3.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-RJMK4.tmp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
Filesize
680KB

MD5
283da5c763c54b41092d9fe0d244b491

SHA1
d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03

SHA256
339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9

SHA512
306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

Download Submit
memory/1504-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1504-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1504-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2332-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2332-63-0x0000000004220000-0x000000000450D000-memory.dmp

Filesize
2.9MB

Download
memory/2332-79-0x0000000004220000-0x000000000450D000-memory.dmp

Filesize
2.9MB

Download
memory/2332-75-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2420-105-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-99-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-138-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-76-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-133-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-80-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-83-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-86-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-89-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-92-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-93-0x00000000022B0000-0x0000000002352000-memory.dmp

Filesize
648KB

Download
memory/2420-72-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-102-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-130-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-108-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-111-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-114-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-118-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-121-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-124-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2420-127-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2460-65-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2460-66-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2460-70-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads