socks5systemz | aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa

General

Target

aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.exe
Size

5.1MB
MD5

6800104620c314a1cb68080362eb8857
SHA1

10b6a15e6338559e0b84353863961ee7af4fb22a
SHA256

aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa
SHA512

d7ff23e6b601c661f6714da56e9dbf4eb8cd228aa5ce62776794ecf50537be5490cc413331729b50c01184799530644b90c922bbe80cba44be71008968d37805
SSDEEP

98304:N915R0LZrjMfiYaIz1SXwNTX1PfCt/U7mTcZBTtvtQo2x9vY/vBq:ND0LZrwfiYfbTkges/lq9vgvM

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2784-91-0x0000000002450000-0x00000000024F2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp
944	voicemod32.exe
2784	voicemod32.exe

Loads dropped DLL 3 IoCs

pid	Process
4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp
4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp
4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 4744	2000	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.exe	83
PID 2000 wrote to memory of 4744	2000	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.exe	83
PID 2000 wrote to memory of 4744	2000	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.exe	83
PID 4744 wrote to memory of 944	4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp	84
PID 4744 wrote to memory of 944	4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp	84
PID 4744 wrote to memory of 944	4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp	84
PID 4744 wrote to memory of 2784	4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp	85
PID 4744 wrote to memory of 2784	4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp	85
PID 4744 wrote to memory of 2784	4744	aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp	85

C:\Users\Admin\AppData\Local\Temp\aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.exe
"C:\Users\Admin\AppData\Local\Temp\aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\is-GA8HS.tmp\aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-GA8HS.tmp\aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp" /SL5="$7005E,5125098,54272,C:\Users\Admin\AppData\Local\Temp\aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:4744
- - C:\Users\Admin\AppData\Local\Voicemod\voicemod32.exe
    "C:\Users\Admin\AppData\Local\Voicemod\voicemod32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:944
- - C:\Users\Admin\AppData\Local\Voicemod\voicemod32.exe
    "C:\Users\Admin\AppData\Local\Voicemod\voicemod32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-DV51B.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DV51B.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GA8HS.tmp\aa2deb248c5938a8d817e9e0c8a5f55079758d9de9261a57c61ce3488ecf6eaa.tmp

Filesize
696KB

MD5
d260617c076409788e1d3f1de1565f24

SHA1
95b4ee43e0855bd522703a0d100670d79868dd27

SHA256
12ac4fcc396e4758253df1fdaa2f8fd0970045bd322a94edb3e9b74b3c23e508

SHA512
cca8e2dca90b99c73a6ca22f1a22dcb7bbe57c4ef850f5390aa6e68a620b65d210848a26666f86b61d2aebb2fdfbea4f986c672d67b145d8a72d90d02d498e78

Download Submit
C:\Users\Admin\AppData\Local\Voicemod\libeay32.dll

Filesize
1.9MB

MD5
876a839023b8f962a72d295da7495734

SHA1
62a7728679bc18784b1fbf1d013f7cece18cbec9

SHA256
a757d773da406411fb977761f6e56f016d48d224aedaf3d875ed4d4a9ede6158

SHA512
e1b23a2f5ec0100ff874ca075bbd0f90e9065a90fec66861f99df603d7aaa9db8e8ec326710fdc11ad41d01befe4ea3077136127acf613614d0d12ff23bec6c1

Download Submit
C:\Users\Admin\AppData\Local\Voicemod\voicemod32.exe

Filesize
2.1MB

MD5
a19c978df089c643eb5e32b5839f6f20

SHA1
286d67a390d01339b7c9fb9280b6e449e8200b86

SHA256
16e7de61eb306fe961dd629ce8b943a80e4ab9d141adfe0a656002cf934f61a0

SHA512
a5ede66a86a40aa05e1ba823ad96931036176d90c1ce131521c0054bc87f5b6b11e8d5b9647901efb3bfae0c8ba781995e5b52bf1ed54a962890351ee29d9e21

Download Submit
memory/944-65-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/944-66-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/944-69-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/944-71-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2000-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2000-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2000-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2784-95-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-110-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-122-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-78-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-81-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-84-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-87-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-90-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-91-0x0000000002450000-0x00000000024F2000-memory.dmp

Filesize
648KB

Download
memory/2784-119-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-101-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-104-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-107-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-75-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-113-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/2784-116-0x0000000000400000-0x000000000061F000-memory.dmp

Filesize
2.1MB

Download
memory/4744-22-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/4744-77-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download

Analysis

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