socks5systemz | 2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6

General

Target

2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.exe
Size

4.8MB
MD5

206fcae58ce4883d203e60dc568a7f5d
SHA1

fc7faa53949e17280cd95dae6b919486f3c60904
SHA256

2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6
SHA512

2854724c682f057477539e633ba6c698aa21dbf8161f7ff1254a33283a90473d817bfcade3ce264ba6c2127e00f181ebd0a5db6a0bc8c68ad79704e31a0a8d19
SSDEEP

98304:+NnTFL73XGLb0xSsxH8a32/v8D8fFfZyOg+AkvIxPeGdZIr/p77hAkRTRtd1Zcs:Mn1+0xiF/tf1ZYvkwkV/t7DRTRvXcs

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://errvxoe.ua/search/?q=67e28dd86b55f62e435ba9187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a371ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ffb16c7eb9c993b

Signatures

Detect Socks5Systemz Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2068-92-0x0000000000820000-0x00000000008C2000-memory.dmp	family_socks5systemz
behavioral2/memory/2068-137-0x0000000000820000-0x00000000008C2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp
1864	jenimmusicconverter.exe
2068	jenimmusicconverter.exe

Loads dropped DLL 3 IoCs

pid	Process
4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp
4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp
4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 4636	4568	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.exe	72
PID 4568 wrote to memory of 4636	4568	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.exe	72
PID 4568 wrote to memory of 4636	4568	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.exe	72
PID 4636 wrote to memory of 1864	4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp	73
PID 4636 wrote to memory of 1864	4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp	73
PID 4636 wrote to memory of 1864	4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp	73
PID 4636 wrote to memory of 2068	4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp	74
PID 4636 wrote to memory of 2068	4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp	74
PID 4636 wrote to memory of 2068	4636	2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp	74

C:\Users\Admin\AppData\Local\Temp\2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.exe
"C:\Users\Admin\AppData\Local\Temp\2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Users\Admin\AppData\Local\Temp\is-7M05K.tmp\2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-7M05K.tmp\2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp" /SL5="$5024C,4786111,54272,C:\Users\Admin\AppData\Local\Temp\2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Users\Admin\AppData\Local\Jenim Music Converter\jenimmusicconverter.exe
    "C:\Users\Admin\AppData\Local\Jenim Music Converter\jenimmusicconverter.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1864
- - C:\Users\Admin\AppData\Local\Jenim Music Converter\jenimmusicconverter.exe
    "C:\Users\Admin\AppData\Local\Jenim Music Converter\jenimmusicconverter.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2068

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\Jenim Music Converter\jenimmusicconverter.exe

Filesize
1.7MB

MD5
940f15e4186c6f179a9d9e7759517361

SHA1
5f2a1e9b25c5ccd0ad1e74854a810a76b6bfe1ab

SHA256
df6665776edee8a1378e46379103d03512eb450d8ed7efa47edcbb55a129c0b4

SHA512
9b2d322865ff8796627be34f8c7e738cf4734ca38c3fac2e5b4c745e1b5c77693d50fdde779b1f27ba8aa707c8d8b5f50fd134d98eacdb8193f97dbdc41b0ed8

Download Submit
C:\Users\Admin\AppData\Local\Jenim Music Converter\libeay32.dll

Filesize
2.0MB

MD5
1176a2fcbc3cfb77207db7575dd6a522

SHA1
e0a854c77a65e542712c9fe3feae2331fcddb7f4

SHA256
553200e21658e7976d496c52cc1aeb50446b877ccda4f0b073a553ec3fb48560

SHA512
bb00340e4931342c4db499d68e98542f401a985c062810225ee661a7a289a885dab8c64f37fb231212ad2a5d703f3fd0528e8402fc1033cf4128d075714e3f34

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-7M05K.tmp\2a8c9a9ab73fe6338f48abc3395a0e6671126e99648f80bcd4b5b519b3a0fef6.tmp

Filesize
695KB

MD5
c20681cc4555e94fa86e37fd93665ee3

SHA1
1b10057bf7788b5af83f9cc96065fffcc214423e

SHA256
96f0e6fdfee29ad7897c969a579a6ffea353ef558bb1d9cb7ca941eb2c71ab03

SHA512
88895e93665098f00ec4f8c0a44a6b8d4c0209f80b508a2944a77ca54722ec05440d825202af246344d7e1942b8ccef63dfc7db36bbbbce49a52d1f85d126c5f

Download Submit
\Users\Admin\AppData\Local\Temp\is-07SRR.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-07SRR.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
memory/1864-70-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/1864-66-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/1864-65-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-83-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-99-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-137-0x0000000000820000-0x00000000008C2000-memory.dmp

Filesize
648KB

Download
memory/2068-73-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-136-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-133-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-77-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-80-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-130-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-86-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-89-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-92-0x0000000000820000-0x00000000008C2000-memory.dmp

Filesize
648KB

Download
memory/2068-94-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-127-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-102-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-105-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-108-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-111-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-114-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-118-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-121-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/2068-124-0x0000000000400000-0x00000000005AE000-memory.dmp

Filesize
1.7MB

Download
memory/4568-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4568-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4568-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4636-12-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4636-76-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

Analysis

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