socks5systemz | 707b321c42fbaa91cf41a9b41c85f3b56c7326cb32f40fc495f17df83b21cbed

General

Target

stories.exe
Size

5.9MB
MD5

cbb34d95217826f4ad877e7e7a46b69c
SHA1

d903374f9236b135cf42c4a573b5cd33df9074bd
SHA256

707b321c42fbaa91cf41a9b41c85f3b56c7326cb32f40fc495f17df83b21cbed
SHA512

eec4382387a1c2223da3350a28ec250cfa6dd2edb7eda6c516ee32fc784638f23005e992af337e9d87878fe2049b0a41df7f1c65c9d717d6a8771d7833be3f60
SSDEEP

98304:PX4wRX+gNnYLzYhrMfgiBB3owncvnuOK+VWUhFh6J3GB4VVPYhpYEFyazx1G0:vnRX+gNnYvgHycaYwTVVPQyaB

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral3/memory/3724-93-0x0000000000AD0000-0x0000000000B72000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 2 IoCs

pid	Process
4016	stories.tmp
3724	shineencoder32.exe

Loads dropped DLL 2 IoCs

pid	Process
4016	stories.tmp
3724	shineencoder32.exe

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	152.89.198.214

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

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stories.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stories.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shineencoder32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4016	stories.tmp
4016	stories.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4016	stories.tmp

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 4016	1788	stories.exe	77
PID 1788 wrote to memory of 4016	1788	stories.exe	77
PID 1788 wrote to memory of 4016	1788	stories.exe	77
PID 4016 wrote to memory of 2880	4016	stories.tmp	78
PID 4016 wrote to memory of 2880	4016	stories.tmp	78
PID 4016 wrote to memory of 2880	4016	stories.tmp	78
PID 4016 wrote to memory of 3724	4016	stories.tmp	80
PID 4016 wrote to memory of 3724	4016	stories.tmp	80
PID 4016 wrote to memory of 3724	4016	stories.tmp	80
PID 2880 wrote to memory of 3564	2880	net.exe	81
PID 2880 wrote to memory of 3564	2880	net.exe	81
PID 2880 wrote to memory of 3564	2880	net.exe	81

C:\Users\Admin\AppData\Local\Temp\stories.exe
"C:\Users\Admin\AppData\Local\Temp\stories.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Users\Admin\AppData\Local\Temp\is-K8LRO.tmp\stories.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-K8LRO.tmp\stories.tmp" /SL5="$6016C,5532893,721408,C:\Users\Admin\AppData\Local\Temp\stories.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4016
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause shine-encoder_11152
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2880
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause shine-encoder_11152
      4⤵
      System Location Discovery: System Language Discovery
      PID:3564
- - C:\Users\Admin\AppData\Local\Shine Encoder 1.4.3\shineencoder32.exe
    "C:\Users\Admin\AppData\Local\Shine Encoder 1.4.3\shineencoder32.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3724

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Shine Encoder 1.4.3\shineencoder32.exe

Filesize
3.6MB

MD5
f978d5eba9977af32374dcb616cb63fe

SHA1
d45c19f173d68fb11dd1c358b42b135e634ebe4e

SHA256
2921409fa28850e3c1874ae52a25b00f93961c278cf131f11f67cee89061f7c8

SHA512
0075c468db47b8f92b9d329089a61fd554c5f7fc374be34fcff8f925dba334ba41bab09303e16d32607597af5e2636203db312c412fc68b3bee60a799620fe9f

Download Submit
C:\Users\Admin\AppData\Local\Shine Encoder 1.4.3\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-BOQ4V.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-K8LRO.tmp\stories.tmp

Filesize
2.4MB

MD5
d39963c7160d31f9ef536becf3004498

SHA1
9485f170d679b63b6eaef023c2459d50e665dcd6

SHA256
70cdfb9222cfe63dc84ccb91fc76ed489e3a8ab62876dd0eaf57659d6d9d0adc

SHA512
b5b5cd3623af8be77979d51b6f7a19504f565435a256c2b5b908faca335ed1a330131c5b8bf845b290fb980c778434aa7addbcba3043c4421f7c9343344fdad5

Download Submit
memory/1788-69-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/1788-2-0x0000000000401000-0x00000000004A9000-memory.dmp

Filesize
672KB

Download
memory/1788-0-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3724-73-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/3724-88-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-67-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-129-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-64-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-71-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-72-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-125-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-76-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-80-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-84-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-63-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-93-0x0000000000AD0000-0x0000000000B72000-memory.dmp

Filesize
648KB

Download
memory/3724-92-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-100-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-104-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-108-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-112-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-116-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/3724-120-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4016-6-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/4016-68-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download

Analysis

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