socks5systemz | 1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8

General

Target

1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.exe
Size

5.0MB
MD5

915ca029bb259f339cbf12728e87d38b
SHA1

61dec59da649eeca4d1058ca346f399e60592c2d
SHA256

1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8
SHA512

d229b4096609194cd2fb770d8846fc751bfa3f34b8c99f3f33e62f143648045050f8faaeed7145aa931666369093c924afa4ae0f48f50054d34ec1ee9b57cffb
SSDEEP

98304:mZs9TCAas88G0/J8LYe++PVbcrs1NoNI7bb8fJ8bG+lqAKop+3gXtyuqa3cI0UQ:hD//6LYe+kV4rISub8fJO8A2gd6a3Ng

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bxoling.com

http://bxoling.com/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff717c0ef909d3c

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2360-83-0x0000000000980000-0x0000000000A22000-memory.dmp	family_socks5systemz

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

Processes:

1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

756 1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp
4740 m4atomp3converter.exe
2360 m4atomp3converter.exe
Loads dropped DLL 1 IoCs

Processes:

1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp

pid process

756 1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.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 91.211.247.248
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:

1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp

pid process

756 1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp

pid	process
756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp
4740	m4atomp3converter.exe
2360	m4atomp3converter.exe

pid	process
756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.exe1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp

description	pid	process	target process
PID 4208 wrote to memory of 756	4208	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.exe	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp
PID 4208 wrote to memory of 756	4208	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.exe	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp
PID 4208 wrote to memory of 756	4208	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.exe	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp
PID 756 wrote to memory of 4740	756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp	m4atomp3converter.exe
PID 756 wrote to memory of 4740	756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp	m4atomp3converter.exe
PID 756 wrote to memory of 4740	756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp	m4atomp3converter.exe
PID 756 wrote to memory of 2360	756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp	m4atomp3converter.exe
PID 756 wrote to memory of 2360	756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp	m4atomp3converter.exe
PID 756 wrote to memory of 2360	756	1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.exe
"C:\Users\Admin\AppData\Local\Temp\1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4208

C:\Users\Admin\AppData\Local\Temp\is-G85EC.tmp\1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp
"C:\Users\Admin\AppData\Local\Temp\is-G85EC.tmp\1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp" /SL5="$4023E,4963989,54272,C:\Users\Admin\AppData\Local\Temp\1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:756

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:4740

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:2360

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
Filesize
3.1MB

MD5
ec0f3158d5afd17be39133044b926a9e

SHA1
8506c10216959bf3fd5be3f6feb845c0424874a1

SHA256
c2c221e2beadceb56a1914c4561de953a307683ace06ef704135683dd85dcc58

SHA512
f12cccfd80d745fd3b1464c88e8954cdc1f1c8f6de2a71a769e06c3eb58a808e7a805ca5d2d1d7dfb085a7a8815283a87c3266ed0ebf3a9bd82ec9112d5d5a33

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-G85EC.tmp\1b7ea6270b2aec5b56743055932b078657b9756c49591b1e8f3eb65b1280f7e8.tmp
Filesize
680KB

MD5
283da5c763c54b41092d9fe0d244b491

SHA1
d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03

SHA256
339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9

SHA512
306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

Download Submit
\Users\Admin\AppData\Local\Temp\is-SV1PI.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/756-67-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/756-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2360-99-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-90-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-129-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-124-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-121-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-118-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-68-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-71-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-74-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-77-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-80-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-83-0x0000000000980000-0x0000000000A22000-memory.dmp

Filesize
648KB

Download
memory/2360-85-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-115-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-93-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-96-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-112-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-102-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-105-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/2360-109-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/4208-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4208-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4208-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4740-59-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/4740-63-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download
memory/4740-60-0x0000000000400000-0x000000000071F000-memory.dmp

Filesize
3.1MB

Download

Analysis

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