socks5systemz | 1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab

General

Target

1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.exe
Size

2.0MB
MD5

0d060c424a02f22c2fc0c715b005b5b4
SHA1

d581ca2238fcda9904513ac497839a3f61312be6
SHA256

1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab
SHA512

504375493e915e94f397bf5e40cf059f00565a2fda6059054f32eed201b87e17732de14141d7201105603c4abcdf123402f6958b9c0e69665762670045599fbd
SSDEEP

49152:32csYzIg+M3dnSDF474sGGsR/emVxqk0ICaXii0Gdpz:mN5gTNSp6sGO/emnqk0riXdl

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bnoubvf.com/search/?q=67e28dd83a58f22a160bab1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a071ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe14c6e8909e3e

http://bnoubvf.com/search/?q=67e28dd83a58f22a160bab1e7c27d78406abdd88be4b12eab517aa5c96bd86e895874c885a8bbc896c58e713bc90c91936b5281fc235a925ed3e03d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949f3dca6a9213

Signatures

Detect Socks5Systemz Payload 5 IoCs

resource	yara_rule
behavioral2/memory/3496-72-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral2/memory/3496-76-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral2/memory/3496-85-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral2/memory/3496-98-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral2/memory/3496-99-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp
1436	htmlpadhunt.exe
3496	htmlpadhunt.exe

Loads dropped DLL 3 IoCs

pid	Process
4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp
4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp
4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp

Unexpected DNS network traffic destination 1 IoCs

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

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 WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 4980	4092	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.exe	76
PID 4092 wrote to memory of 4980	4092	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.exe	76
PID 4092 wrote to memory of 4980	4092	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.exe	76
PID 4980 wrote to memory of 1436	4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp	77
PID 4980 wrote to memory of 1436	4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp	77
PID 4980 wrote to memory of 1436	4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp	77
PID 4980 wrote to memory of 3496	4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp	78
PID 4980 wrote to memory of 3496	4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp	78
PID 4980 wrote to memory of 3496	4980	1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp	78

C:\Users\Admin\AppData\Local\Temp\1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.exe
"C:\Users\Admin\AppData\Local\Temp\1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4092
- C:\Users\Admin\AppData\Local\Temp\is-21JUP.tmp\1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-21JUP.tmp\1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp" /SL5="$5023E,1751443,54272,C:\Users\Admin\AppData\Local\Temp\1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:4980
- - C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe
    "C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1436
- - C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe
    "C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3496

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\HTML Pad Hunter\htmlpadhunt.exe

Filesize
1.8MB

MD5
ddeb90e0cc2e5b06432df701a312fa33

SHA1
3b4d78880e1fb198d130a122ba3d32dececcdc68

SHA256
9309ecc7a0dfdbaa2ae66bfb571a73da4b90be2efec094454bac7b2eae94f82e

SHA512
3bc49cd2cd3193c5180e9c8fc780d5489e94e960384ad54eb43660d91e342daf15335cab6333fe2fda471342f06c1513a2d7b5f92de55390c21b5c6c008b314c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-21JUP.tmp\1f675f36407297395874e900093b41df18f53a945f56afcdb49a284003be9fab.tmp

Filesize
677KB

MD5
ed5aaa73297efebf32e02e1b894ff97f

SHA1
2cdf7a7b8a8bf981fbdd6c48d521eb75b9bb346f

SHA256
100656adcfaee0113fa42755f4b960960feee667f5e960b83f271337b4e71386

SHA512
bc1319543b318db87539b7bc828fad665a8dd6f71ab474df920b181114b9bf4c14fc228d1d043a16de3c1cce44ff81c874eadec67c0bbbbcf8aa12472e522a4a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VI866.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VI866.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
memory/1436-46-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/1436-49-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/1436-44-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/1436-45-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-61-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-70-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-106-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-51-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-53-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-103-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-99-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/3496-56-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-98-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/3496-60-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-97-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-64-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-67-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-94-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-72-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/3496-75-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-76-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/3496-81-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-84-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-85-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/3496-88-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/3496-91-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

Download
memory/4092-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4092-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4092-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4980-7-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/4980-57-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/4980-55-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download

Analysis

Sharing