socks5systemz | 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba

General

Target

376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe
Size

4.8MB
MD5

e453f90cd27e506462f3d5bfd7054148
SHA1

3f645dee28e54c6f262e2ec8b65e97e05bbe48f8
SHA256

376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba
SHA512

208bf169ae42e70dc5501a4accaa20f19927c2d48478a49d0ff685c6a7c0943d186f56f6d0160ff76fa8c072618850289f3936cd9d1c1066e42fd6873f41aa51
SSDEEP

98304:m1X922HLks7WIMRqVIP73Wf86sGuWWir8lXUAtgub/ZgJ/C:sXMasI6/7mf864WWirqXvhRk/C

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bffdlbz.com

http://bffdlbz.com/search/?q=67e28dd86a5ef62a130aa5197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd12c3e895

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2652-92-0x0000000002600000-0x00000000026A2000-memory.dmp	family_socks5systemz

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

Processes:

376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

2928 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
2440 m4atomp3converter.exe
2652 m4atomp3converter.exe

pid	process
2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
2440	m4atomp3converter.exe
2652	m4atomp3converter.exe

Loads dropped DLL 5 IoCs

Processes:

376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp

pid	process
1948	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe
2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.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 45.155.250.90
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:

376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp

pid process

2928 376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp

description	pid	process	target process
PID 1948 wrote to memory of 2928	1948	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
PID 1948 wrote to memory of 2928	1948	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
PID 1948 wrote to memory of 2928	1948	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
PID 1948 wrote to memory of 2928	1948	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
PID 1948 wrote to memory of 2928	1948	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
PID 1948 wrote to memory of 2928	1948	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
PID 1948 wrote to memory of 2928	1948	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
PID 2928 wrote to memory of 2440	2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp	m4atomp3converter.exe
PID 2928 wrote to memory of 2440	2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp	m4atomp3converter.exe
PID 2928 wrote to memory of 2440	2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp	m4atomp3converter.exe
PID 2928 wrote to memory of 2440	2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp	m4atomp3converter.exe
PID 2928 wrote to memory of 2652	2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp	m4atomp3converter.exe
PID 2928 wrote to memory of 2652	2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp	m4atomp3converter.exe
PID 2928 wrote to memory of 2652	2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp	m4atomp3converter.exe
PID 2928 wrote to memory of 2652	2928	376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe
"C:\Users\Admin\AppData\Local\Temp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948

C:\Users\Admin\AppData\Local\Temp\is-KO3HA.tmp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp
"C:\Users\Admin\AppData\Local\Temp\is-KO3HA.tmp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp" /SL5="$400EE,4783805,54272,C:\Users\Admin\AppData\Local\Temp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2928

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:2440

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:2652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2.9MB

MD5
9058a24c7ee89152190613e27c831a47

SHA1
bcd2d3409e4ce69ce2fcaba5fb2d43de6d2d6df6

SHA256
032c2541a0f7f48aa1659e59331f4de35d283f9249318ab30f667f7974f1fdbf

SHA512
22c4bbbefac5725439797263b20b501b13231df4e610ae00354849762bac93d5b36b92c1d3448342de8bc7d822e9b2842cad60847220b836a78bfad695e72ee3

Download Submit
\Users\Admin\AppData\Local\Temp\is-FCJ80.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-FCJ80.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-KO3HA.tmp\376ea1088a0672ce1a710ecd6c752838c6811497869debc0f6d3702ea52f35ba.tmp

Filesize
680KB

MD5
984e6b8a7e6fa5cbf5a45904b1defc00

SHA1
37ce92d6cf1a117a191d14cc7fa1a6a97c05c967

SHA256
3313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7

SHA512
55af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8

Download Submit
memory/1948-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1948-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1948-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-69-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2440-65-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2440-66-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-75-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-92-0x0000000002600000-0x00000000026A2000-memory.dmp

Filesize
648KB

Download
memory/2652-137-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-132-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-126-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-78-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-129-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-82-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-85-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-88-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-91-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-71-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-98-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-101-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-104-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-107-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-110-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-113-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-117-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-120-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2652-123-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2928-64-0x0000000003350000-0x000000000363D000-memory.dmp

Filesize
2.9MB

Download
memory/2928-79-0x0000000003350000-0x000000000363D000-memory.dmp

Filesize
2.9MB

Download
memory/2928-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2928-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads