socks5systemz | d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d

General

Target

d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe
Size

4.7MB
MD5

1e69e6acbf2df4c9f67f144423a46249
SHA1

d380366b2a7d4532532b1085cc64196194980a31
SHA256

d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d
SHA512

c8d1ac54655c99d2a17abff341ea7cb2884370ec145116191992561153956c5a048f6c99008e87c0b31249207474b64868ecde1ee6ecc70878741135defa3e6a
SSDEEP

98304:mGgysOpXKUUahEufbe9sP/OyP6Sj6abonRvyTodoOductUcEPe/3lXLvIyl6:tPKUh5be9sP/zCqKRvyovucttEgXLvE

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

aipafzu.ru

http://aipafzu.ru/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dfd12c2e990

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2500-95-0x0000000002190000-0x0000000002232000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmplesserextent32.exelesserextent32.exe

pid process

1520 d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
2872 lesserextent32.exe
2500 lesserextent32.exe

pid	process
1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
2872	lesserextent32.exe
2500	lesserextent32.exe

Loads dropped DLL 5 IoCs

Processes:

d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exed4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp

pid	process
2216	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe
1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp

Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 91.211.247.248
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

Processes:

d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp

pid process

1520 d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exed4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp

description	pid	process	target process
PID 2216 wrote to memory of 1520	2216	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
PID 2216 wrote to memory of 1520	2216	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
PID 2216 wrote to memory of 1520	2216	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
PID 2216 wrote to memory of 1520	2216	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
PID 2216 wrote to memory of 1520	2216	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
PID 2216 wrote to memory of 1520	2216	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
PID 2216 wrote to memory of 1520	2216	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
PID 1520 wrote to memory of 2872	1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp	lesserextent32.exe
PID 1520 wrote to memory of 2872	1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp	lesserextent32.exe
PID 1520 wrote to memory of 2872	1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp	lesserextent32.exe
PID 1520 wrote to memory of 2872	1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp	lesserextent32.exe
PID 1520 wrote to memory of 2500	1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp	lesserextent32.exe
PID 1520 wrote to memory of 2500	1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp	lesserextent32.exe
PID 1520 wrote to memory of 2500	1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp	lesserextent32.exe
PID 1520 wrote to memory of 2500	1520	d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp	lesserextent32.exe

C:\Users\Admin\AppData\Local\Temp\d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe
"C:\Users\Admin\AppData\Local\Temp\d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2216

C:\Users\Admin\AppData\Local\Temp\is-Q8N3I.tmp\d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
"C:\Users\Admin\AppData\Local\Temp\is-Q8N3I.tmp\d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp" /SL5="$7011E,4669352,54272,C:\Users\Admin\AppData\Local\Temp\d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1520

C:\Users\Admin\AppData\Local\Lesser Extent\lesserextent32.exe
"C:\Users\Admin\AppData\Local\Lesser Extent\lesserextent32.exe" -i
3⤵
- Executes dropped EXE
PID:2872

C:\Users\Admin\AppData\Local\Lesser Extent\lesserextent32.exe
"C:\Users\Admin\AppData\Local\Lesser Extent\lesserextent32.exe" -s
3⤵
- Executes dropped EXE
PID:2500

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\Lesser Extent\lesserextent32.exe
Filesize
2.8MB

MD5
e5b9a7daea56db2751adab767a338f92

SHA1
c59054ec56da771a8da204bf4a2de0d62d856673

SHA256
c5fc309cfd4d9814d77f7b8e736f4e08d594448973a903dd1ca8e2b5e112cb22

SHA512
2947d05c1ff8c969c0147000ffb8575b7883c6dc312a88be15345a7a6c443a77dba581f4c3c5d31f69041b2df49ec9a7c58d095722559df939f3b71e0bcf381e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-Q8N3I.tmp\d4214b56750d64b0017cf5a4ac3174065c525e6d16fb9a59fdbbb6447d78bc8d.tmp
Filesize
680KB

MD5
dff4f58a01a8e88e4a2f821ca761d901

SHA1
e67e24669220213f895b68c0d662b02b03469b4a

SHA256
91b049634c65dbe18368e1f2ead4ae48f62b92fdfcd119ccea0919b68bf56e76

SHA512
049cebaa8bc30f2b7b90a49f6022271247fab2a3bc0fd2e9f36d1f27e0c37926f00deedd92b5d85a8b34f2f6e9b59ee3b7e12510cfa720935a86ba820132817a

Download Submit
\Users\Admin\AppData\Local\Temp\is-II39M.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-II39M.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1520-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1520-64-0x0000000003B70000-0x0000000003E34000-memory.dmp

Filesize
2.8MB

Download
memory/1520-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1520-79-0x0000000003B70000-0x0000000003E34000-memory.dmp

Filesize
2.8MB

Download
memory/2216-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2216-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2216-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2500-82-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-99-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-136-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-78-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-133-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-132-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-83-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-86-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-91-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-93-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-95-0x0000000002190000-0x0000000002232000-memory.dmp

Filesize
648KB

Download
memory/2500-72-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-102-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-107-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-108-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-111-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-116-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-119-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-121-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-124-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2500-129-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2872-65-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2872-66-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download
memory/2872-70-0x0000000000400000-0x00000000006C4000-memory.dmp

Filesize
2.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads