socks5systemz | 3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153

General

Target

3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.exe
Size

5.9MB
MD5

3107fd150626df8695083fe63b449f19
SHA1

d9bb65833dd3fffd49dff8fbb800282a24329162
SHA256

3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153
SHA512

c1dd662aca77015694ca7c8eb8e7e045606a4954de6367801188001789d321cdd3c5a8db21f5d3965e05004f25cdbebad2b47b513cc34513c6b721b783466808
SSDEEP

98304:mV/HmIUFN6ip/jqIFQNYp082I9uwE4Ox9C889LM9DL8z/D6VyHgdcG0fo2mk3xS:Q/G7FNxrmNiS54RI8z/THgdanmk3c

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ezhuolo.ua

http://ezhuolo.ua/search/?q=67e28dd8655bf57a4609f84c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff717c0ef929b3b

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/224-92-0x0000000000990000-0x0000000000A32000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp
4888	lampungsoundstage32.exe
224	lampungsoundstage32.exe

Loads dropped DLL 3 IoCs

pid	Process
3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp
3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp
3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.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	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

pid	Process
3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 600 wrote to memory of 3576	600	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.exe	72
PID 600 wrote to memory of 3576	600	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.exe	72
PID 600 wrote to memory of 3576	600	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.exe	72
PID 3576 wrote to memory of 4888	3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp	73
PID 3576 wrote to memory of 4888	3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp	73
PID 3576 wrote to memory of 4888	3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp	73
PID 3576 wrote to memory of 224	3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp	74
PID 3576 wrote to memory of 224	3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp	74
PID 3576 wrote to memory of 224	3576	3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp	74

C:\Users\Admin\AppData\Local\Temp\3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.exe
"C:\Users\Admin\AppData\Local\Temp\3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:600
- C:\Users\Admin\AppData\Local\Temp\is-4PFRP.tmp\3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-4PFRP.tmp\3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp" /SL5="$80234,5888794,54272,C:\Users\Admin\AppData\Local\Temp\3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3576
- - C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
    "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4888
- - C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
    "C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:224

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\Lampung Soundstage\lampungsoundstage32.exe

Filesize
3.7MB

MD5
72ba6324e9d713ca9a91301a4a4cd9e7

SHA1
0adc078326e387cd6b01d6c59a4582e6ab196d05

SHA256
3e4f172b7e2c8e059991cad3d7f9e5b60658ad51d390b7ff69ac35a0b97dc1e3

SHA512
b83ec595df7e2a018671e7c5bc2722804c974fc33a840847c450408e32640a6635b6f230a85835fe6a2bdd947c9ea2302ae8c317145ecdc50181728405bee9b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4PFRP.tmp\3885e17b0c2f45a5790d2ee1e1b2c06f29b03340f22e93f27ef3590330fc7153.tmp

Filesize
680KB

MD5
7a27a6b2c6d4e3cf7f7046032f6ca620

SHA1
4b9e5af4bbea5d1d5760c5ceb3ef4f71bdb9fb19

SHA256
d44cb08a6d7e9c723d71932028ea8d43bccbecf37ec01654b76c4299bdeef35a

SHA512
b2b700d952f8dca39bc7d2831363d96090f42aab30b627b7b0709a730ef19e9314bac963e3d7257680a925c4e7f0e355d030eb39e58f489e9c79f61079fa5279

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-UUSAC.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/224-108-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-114-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-138-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-133-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-130-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-127-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-73-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-124-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-121-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-76-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-118-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-80-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-83-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-86-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-89-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-92-0x0000000000990000-0x0000000000A32000-memory.dmp

Filesize
648KB

Download
memory/224-96-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-99-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-102-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-105-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/224-111-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/600-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/600-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/600-3-0x00007FFA478C0000-0x00007FFA47A9B000-memory.dmp

Filesize
1.9MB

Download
memory/3576-19-0x00007FFA478C0000-0x00007FFA47A9B000-memory.dmp

Filesize
1.9MB

Download
memory/3576-79-0x00007FFA478C0000-0x00007FFA47A9B000-memory.dmp

Filesize
1.9MB

Download
memory/3576-75-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4888-70-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/4888-66-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download
memory/4888-65-0x0000000000400000-0x00000000007BF000-memory.dmp

Filesize
3.7MB

Download

Analysis

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