socks5systemz | c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05

General

Target

c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.exe
Size

5.3MB
MD5

fcf4bb35668a4efaf87e08ab32596602
SHA1

a9556119ac58d0d4f1069b5c44d657fd7ae6f9cc
SHA256

c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05
SHA512

b91f1c10a3788760d4f729e27442463f662da3cc9d93c85adf5e5720bb21c954c7c92ec66b5ed062133aa1bc52d9ee48516fb8f91d661206b2e44641e619a82e
SSDEEP

98304:met8ysl/fxPt55MwiVfhUPJ1+1f6rLaFmn5Muw4qWPp/E6BNaKWa7zsntr:JRQfxF55MxMJ81aNDrkGzyr

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/3912-91-0x0000000000B30000-0x0000000000BD2000-memory.dmp	family_socks5systemz
behavioral2/memory/3912-118-0x0000000000B30000-0x0000000000BD2000-memory.dmp	family_socks5systemz
behavioral2/memory/3912-117-0x0000000000B30000-0x0000000000BD2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp
3528	zvaervideorecorder.exe
3912	zvaervideorecorder.exe

Loads dropped DLL 3 IoCs

pid	Process
4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp
4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp
4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.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 FindShellTrayWindow 1 IoCs

pid	Process
4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 4792	3836	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.exe	79
PID 3836 wrote to memory of 4792	3836	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.exe	79
PID 3836 wrote to memory of 4792	3836	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.exe	79
PID 4792 wrote to memory of 3528	4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp	81
PID 4792 wrote to memory of 3528	4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp	81
PID 4792 wrote to memory of 3528	4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp	81
PID 4792 wrote to memory of 3912	4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp	82
PID 4792 wrote to memory of 3912	4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp	82
PID 4792 wrote to memory of 3912	4792	c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp	82

C:\Users\Admin\AppData\Local\Temp\c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.exe
"C:\Users\Admin\AppData\Local\Temp\c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3836
- C:\Users\Admin\AppData\Local\Temp\is-T8DFF.tmp\c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-T8DFF.tmp\c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp" /SL5="$6022A,5265335,54272,C:\Users\Admin\AppData\Local\Temp\c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4792
- - C:\Users\Admin\AppData\Local\Zvaer Video Recorder\zvaervideorecorder.exe
    "C:\Users\Admin\AppData\Local\Zvaer Video Recorder\zvaervideorecorder.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3528
- - C:\Users\Admin\AppData\Local\Zvaer Video Recorder\zvaervideorecorder.exe
    "C:\Users\Admin\AppData\Local\Zvaer Video Recorder\zvaervideorecorder.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3912

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\Temp\is-BIPJ2.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-BIPJ2.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-T8DFF.tmp\c723b58a10f6952e06a9db30d8bb36756d005a7b1f5018da862aac4d2e561f05.tmp

Filesize
680KB

MD5
f1ee51c7eacce1e7de399503fcf98464

SHA1
f15e223943d1e3d7d9faf908cfa54da7cc6a1e4b

SHA256
560c4f40ebbaa3e66a4a778ea8b278c9bb1285ee468b64efa820ed0a41849552

SHA512
47da2d4959d10e87c926323eea4b67e06ed8116c7f92cf36e2a87b4d9f1061eeca1cd2a817015ebad6c349aa15e40546d0eaa7ee461024156bea8239ee01ca27

Download Submit
C:\Users\Admin\AppData\Local\Zvaer Video Recorder\zvaervideorecorder.exe

Filesize
2.9MB

MD5
2b32cbffcdce0d6b515e1e5c0a7db3ce

SHA1
4505c163f39c1368842e966b3b46760bf96e8664

SHA256
c68d8e5333851c8ed6eb219d9615407f85c9b3e6f08e540b50a52ef92d32a237

SHA512
86c66a62b64c0ee03766972c6dd96a1596c79778f642493f6325c2d577a671471cf8e6ce3f7e013d9f3f923c36f8558f19ff06bfc2b468e32912a4c8f0836f89

Download Submit
memory/3528-66-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3528-65-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3528-71-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3528-70-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3836-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3836-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3836-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3912-80-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-101-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-77-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-74-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-81-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-125-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-84-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-87-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-90-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-91-0x0000000000B30000-0x0000000000BD2000-memory.dmp

Filesize
648KB

Download
memory/3912-95-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-122-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-104-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-107-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-110-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-113-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-116-0x0000000000400000-0x00000000006DE000-memory.dmp

Filesize
2.9MB

Download
memory/3912-118-0x0000000000B30000-0x0000000000BD2000-memory.dmp

Filesize
648KB

Download
memory/3912-117-0x0000000000B30000-0x0000000000BD2000-memory.dmp

Filesize
648KB

Download
memory/4792-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4792-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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