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

ckntiaz.net

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4840-84-0x0000000002530000-0x00000000025D2000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
4592	m4atomp3converter.exe
4840	m4atomp3converter.exe

Loads dropped DLL 1 IoCs

pid	Process
1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	152.89.198.214
Destination IP	152.89.198.214
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

pid	Process
1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1672	748	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	76
PID 748 wrote to memory of 1672	748	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	76
PID 748 wrote to memory of 1672	748	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe	76
PID 1672 wrote to memory of 4592	1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	77
PID 1672 wrote to memory of 4592	1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	77
PID 1672 wrote to memory of 4592	1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	77
PID 1672 wrote to memory of 4840	1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	78
PID 1672 wrote to memory of 4840	1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	78
PID 1672 wrote to memory of 4840	1672	238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp	78

C:\Users\Admin\AppData\Local\Temp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe
"C:\Users\Admin\AppData\Local\Temp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\AppData\Local\Temp\is-STM2Q.tmp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-STM2Q.tmp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp" /SL5="$40222,4783767,54272,C:\Users\Admin\AppData\Local\Temp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1672
- - 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:4592
- - 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:4840

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

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

Filesize
2.9MB

MD5
6b2f758369530e56bff88cd776bb570b

SHA1
850fb4091f0d2ef1460e1b9828646143f46781df

SHA256
407ed914d71b1b92fb655aba6542958b5cbaed3e9b0e2d81261a99b74de799b0

SHA512
9cdd4fb5772a6ae632c186b5a4998fcb337b59f2d922fa2441ae56d1ee73142a3d77d7c78c9c7cc102fbb48198d8c20df40ed102147f6c8c6a3734ea890e48bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-OMI9Q.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-STM2Q.tmp\238104b176dfcd0f9f7cc4e31b48532b791a05aeeb3476e39ee6cc4a11f4be06.tmp

Filesize
680KB

MD5
283da5c763c54b41092d9fe0d244b491

SHA1
d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03

SHA256
339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9

SHA512
306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

Download Submit
memory/748-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/748-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/748-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1672-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1672-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4592-59-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4592-65-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4592-60-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4592-63-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-74-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-88-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-68-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-77-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-80-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-83-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-84-0x0000000002530000-0x00000000025D2000-memory.dmp

Filesize
648KB

Download
memory/4840-71-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-94-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-97-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-100-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-103-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-106-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-109-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-112-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4840-115-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download

Analysis

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