socks5systemz | a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a

General

Target

a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.exe
Size

5.3MB
MD5

5f650adc8a153cee8d970030f9accbb2
SHA1

12b93748a93b088c87f897c03d6573e6a8609f90
SHA256

a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a
SHA512

6d5fdf0164f1b4c7d2c9d9ef759bdf115ac2401e7e9c70e46791953871acbfe9a609e43010181f31d80be8121d02bb8ad3130b9832d34a251d8a9c33f55b8187
SSDEEP

98304:eMzQvKprVdrZcHFesgk0/g++yasE7tfiBDrOZwGyX86treLYiqCx42:3zdrTZcon//+ywtfKn+wGyXhyICx42

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/4464-139-0x00000000007F0000-0x0000000000892000-memory.dmp	family_socks5systemz
behavioral2/memory/4464-162-0x00000000007F0000-0x0000000000892000-memory.dmp	family_socks5systemz
behavioral2/memory/4464-163-0x00000000007F0000-0x0000000000892000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2484	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.tmp
4464	syncplayer32_64.exe

Loads dropped DLL 1 IoCs

pid	Process
2484	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.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

System Location Discovery: System Language Discovery 1 TTPs 3 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	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	syncplayer32_64.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2484	2392	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.exe	84
PID 2392 wrote to memory of 2484	2392	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.exe	84
PID 2392 wrote to memory of 2484	2392	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.exe	84
PID 2484 wrote to memory of 4464	2484	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.tmp	88
PID 2484 wrote to memory of 4464	2484	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.tmp	88
PID 2484 wrote to memory of 4464	2484	a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.tmp	88

C:\Users\Admin\AppData\Local\Temp\a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.exe
"C:\Users\Admin\AppData\Local\Temp\a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Users\Admin\AppData\Local\Temp\is-R3ENL.tmp\a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-R3ENL.tmp\a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.tmp" /SL5="$50286,5309898,54272,C:\Users\Admin\AppData\Local\Temp\a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2484
- - C:\Users\Admin\AppData\Local\SyncPlayer 5.1.2\syncplayer32_64.exe
    "C:\Users\Admin\AppData\Local\SyncPlayer 5.1.2\syncplayer32_64.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4464

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

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\SyncPlayer 5.1.2\syncplayer32_64.exe

Filesize
2.4MB

MD5
eba129f8257a40b4f17bec7654e5ee71

SHA1
44f57c3a62a8dd146478a67f379458e76811e827

SHA256
fabdd34f84d97592a9e9bda3991762cb2a6904ef3d9eb579e054d6d5aabba224

SHA512
710a32cd2b4c1119ac23a3883a627e265fe6b7f2b180e473111eb2685ba3ebfa2843c8931e859d9b263dc90ff7d7ad1601272d4c9205a1b88a11741511932da1

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JH35R.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-R3ENL.tmp\a757f4bd8a0c8226291c0df2156ca816e050070346905c76948e4342f298cb4a.tmp

Filesize
683KB

MD5
5beb1afc154671b731ace9f407b8a68a

SHA1
f2fc06476db0468b19f0d117417b22296a13b38f

SHA256
c60c1ac00601c7ada49c11b69e09e295c8fa84c5aaf43c339c052dec95f05357

SHA512
747cf5423e52268ff588974a4743bdab39147b369fa886019020f0cefb733e89800f43cc2ad381089642fa63b233eed30a1520352b280951ff1eb381f3d2939b

Download Submit
memory/2392-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2392-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2392-120-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2484-119-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2484-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4464-129-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-145-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-116-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-122-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-123-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-126-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-115-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-132-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-135-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-139-0x00000000007F0000-0x0000000000892000-memory.dmp

Filesize
648KB

Download
memory/4464-138-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-118-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-148-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-149-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-152-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-155-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-158-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-161-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-162-0x00000000007F0000-0x0000000000892000-memory.dmp

Filesize
648KB

Download
memory/4464-163-0x00000000007F0000-0x0000000000892000-memory.dmp

Filesize
648KB

Download
memory/4464-167-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/4464-170-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download

Analysis

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