socks5systemz | 3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127

General

Target

3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe
Size

5.0MB
MD5

8c0ab37ceff70be75ec0efbfb8a9d2a2
SHA1

ebb0d7419a8a406b3306ff44c29394f8f5a2c1a8
SHA256

3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127
SHA512

df1512360a8d45044ba63db13ecf61850028bbd5d715c3914c0c5a7a3120776a92862109a7cba1623631877a279078e19099c41dc513b59604670856682f1861
SSDEEP

98304:meR6KO/uYOSYPkn06DCf4pdYmSexvQ+42OgWFs+O9cgqfwUQSaRnA:JRqjYkFmKSexvQ+4iGsp9ctfwUQSsnA

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

dloteyi.info

http://dloteyi.info/search/?q=67e28dd83859fa2b145ba44a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6e8bfd19c4ea93

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2504-94-0x0000000002350000-0x00000000023F2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp
2536	audionormalizer32_64.exe
2504	audionormalizer32_64.exe

Loads dropped DLL 6 IoCs

pid	Process
1596	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe
1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp
1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp
1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp
1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp
1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.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
1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 1920	1596	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe	28
PID 1596 wrote to memory of 1920	1596	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe	28
PID 1596 wrote to memory of 1920	1596	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe	28
PID 1596 wrote to memory of 1920	1596	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe	28
PID 1596 wrote to memory of 1920	1596	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe	28
PID 1596 wrote to memory of 1920	1596	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe	28
PID 1596 wrote to memory of 1920	1596	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe	28
PID 1920 wrote to memory of 2536	1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp	29
PID 1920 wrote to memory of 2536	1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp	29
PID 1920 wrote to memory of 2536	1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp	29
PID 1920 wrote to memory of 2536	1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp	29
PID 1920 wrote to memory of 2504	1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp	30
PID 1920 wrote to memory of 2504	1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp	30
PID 1920 wrote to memory of 2504	1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp	30
PID 1920 wrote to memory of 2504	1920	3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp	30

C:\Users\Admin\AppData\Local\Temp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe
"C:\Users\Admin\AppData\Local\Temp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Users\Admin\AppData\Local\Temp\is-1TIOD.tmp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1TIOD.tmp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp" /SL5="$40150,4949118,54272,C:\Users\Admin\AppData\Local\Temp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe
    "C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2536
- - C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe
    "C:\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2504

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

\Users\Admin\AppData\Local\Audio Normalizer\audionormalizer32_64.exe

Filesize
3.3MB

MD5
11b36ef56a8c1ca8a6934ab794d0167f

SHA1
23b280023f111df7f0e322350ce5e91e95029aa5

SHA256
b4c69209ad61d3a3e840bcbf1d11bbc82b41c28c079c9bb5fbfdca495bc67735

SHA512
eb6d6a2ff7d37532ebbc65e7178ceaf5bbae86041a55c27fbdffca4efaeaf3cf4cdf56fe66f384f502508cb9db0efc95a906dc704f3ba3f990e9f02fc57880a0

Download Submit
\Users\Admin\AppData\Local\Temp\is-1TIOD.tmp\3da087ca93444be5c82bba932afc43e2b3469d16ff4ad0f3e6b7a492f0862127.tmp

Filesize
680KB

MD5
81bccde22051d526856ba27855373251

SHA1
f4c364aece88a2855b0c40e9cdfc8fb2e1406ae8

SHA256
bf3447b6b23117cd772099edca2b134e17cefd530aad224d4bcb842525dfbe6b

SHA512
8d1bfe370d230fd3b37a87c9124a264654e5e410d8d544a6b577386bcb2762fea27c39e9fc28ea56f89123dae34959b606b05a7aae72209fd2f4dedb75822d23

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-PDDEA.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1596-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1596-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1596-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1920-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1920-64-0x00000000038D0000-0x0000000003C1D000-memory.dmp

Filesize
3.3MB

Download
memory/1920-81-0x00000000038D0000-0x0000000003C1D000-memory.dmp

Filesize
3.3MB

Download
memory/1920-80-0x00000000038D0000-0x0000000003C1D000-memory.dmp

Filesize
3.3MB

Download
memory/1920-75-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2504-112-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-100-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-76-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-79-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-137-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-134-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-84-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-87-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-90-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-93-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-94-0x0000000002350000-0x00000000023F2000-memory.dmp

Filesize
648KB

Download
memory/2504-72-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-103-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-106-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-109-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-131-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-115-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-119-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-122-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-125-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2504-128-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2536-65-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2536-66-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download
memory/2536-69-0x0000000000400000-0x000000000074D000-memory.dmp

Filesize
3.3MB

Download

Analysis

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