socks5systemz | c237d3d7c79c5fb7795b875bd6f6c79e5bc95a96d41cf4249d755427dc4c1d58

General

Target

2f74d868692ce50e073cfdd6a2fbafa3.exe
Size

2.4MB
MD5

2f74d868692ce50e073cfdd6a2fbafa3
SHA1

7e31e58f97728181a239583884cd6789e5ddf891
SHA256

c237d3d7c79c5fb7795b875bd6f6c79e5bc95a96d41cf4249d755427dc4c1d58
SHA512

811648978e206e396c790dca0bf61fd161711ed682842a6f95e4e2619e55a445078e56ff3c749ed1bd1e745c952276381029596e5b3d23a3415440b622279beb
SSDEEP

49152:C9Poy707ePYSmuZMJdIdF/+zVQn/IZjjNf2UwcMyPOJPca0o83hlurCT:MAKbGcdFmVQn/IZjjfwcMyPGPcflH

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://csgkybv.net/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923b6e8efa15c8ec9c

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2728-76-0x00000000026D0000-0x0000000002772000-memory.dmp	family_socks5systemz
behavioral1/memory/2728-77-0x00000000026D0000-0x0000000002772000-memory.dmp	family_socks5systemz
behavioral1/memory/2728-89-0x00000000026D0000-0x0000000002772000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp
2608	sadkodrive.exe
2728	sadkodrive.exe

Loads dropped DLL 6 IoCs

pid	Process
1152	2f74d868692ce50e073cfdd6a2fbafa3.exe
1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp
1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp
1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp
1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp
1272	2f74d868692ce50e073cfdd6a2fbafa3.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 behavior: EnumeratesProcesses 2 IoCs

pid	Process
1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp
1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 1272	1152	2f74d868692ce50e073cfdd6a2fbafa3.exe	28
PID 1152 wrote to memory of 1272	1152	2f74d868692ce50e073cfdd6a2fbafa3.exe	28
PID 1152 wrote to memory of 1272	1152	2f74d868692ce50e073cfdd6a2fbafa3.exe	28
PID 1152 wrote to memory of 1272	1152	2f74d868692ce50e073cfdd6a2fbafa3.exe	28
PID 1152 wrote to memory of 1272	1152	2f74d868692ce50e073cfdd6a2fbafa3.exe	28
PID 1152 wrote to memory of 1272	1152	2f74d868692ce50e073cfdd6a2fbafa3.exe	28
PID 1152 wrote to memory of 1272	1152	2f74d868692ce50e073cfdd6a2fbafa3.exe	28
PID 1272 wrote to memory of 2608	1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp	29
PID 1272 wrote to memory of 2608	1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp	29
PID 1272 wrote to memory of 2608	1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp	29
PID 1272 wrote to memory of 2608	1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp	29
PID 1272 wrote to memory of 2728	1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp	30
PID 1272 wrote to memory of 2728	1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp	30
PID 1272 wrote to memory of 2728	1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp	30
PID 1272 wrote to memory of 2728	1272	2f74d868692ce50e073cfdd6a2fbafa3.tmp	30

C:\Users\Admin\AppData\Local\Temp\2f74d868692ce50e073cfdd6a2fbafa3.exe
"C:\Users\Admin\AppData\Local\Temp\2f74d868692ce50e073cfdd6a2fbafa3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Users\Admin\AppData\Local\Temp\is-NT5R8.tmp\2f74d868692ce50e073cfdd6a2fbafa3.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NT5R8.tmp\2f74d868692ce50e073cfdd6a2fbafa3.tmp" /SL5="$7011E,2127575,56832,C:\Users\Admin\AppData\Local\Temp\2f74d868692ce50e073cfdd6a2fbafa3.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1272
- - C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe
    "C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2608
- - C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe
    "C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2728

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\Sadko Drive Speed\sadkodrive.exe

Filesize
261KB

MD5
f9b3bdd8a2fe73e500031aeb0bd38b86

SHA1
82be033ef07bd3e15187f207eeab8d67fb304231

SHA256
8efb72cdbcb654225e0bc074c2ff8f7463ecf64e118675fa68a39fa7c6282bc9

SHA512
9f90cebc6b188adb8b559e5e0ea9e2439e1551c4149826ef7412551e0434a07639743f270df656065d693b904a6c5c963361c53daea7da00d8f7d8c55a8d1463

Download Submit
C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe

Filesize
1.4MB

MD5
d14f9ba39f00c4ec56bb04bd4afda749

SHA1
8ccb3b28a2ea191b7db0dd794efcc095bf3a76fb

SHA256
a966f1387176c2218590286e042f6a424a8ac3825ffc412b5e474e3a69cb98e8

SHA512
6a229742550bd180dba98ff99d382a9b0d95eea9f32306a47f31327100b5e89d6137c6fdb4c82d952723747f33564ea574a3b15864bc82b7c406ae7ee198787c

Download Submit
C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe

Filesize
22KB

MD5
23038ab2b61c443ad9cf4a5329507891

SHA1
f2a2b27c4c6b428908185b15ce1fae7dc2b062c0

SHA256
ea1ea36cac88d56f1054cfb07b1bd8e57862c66daf2e567fd632e4f3d6e5bb46

SHA512
d1ffea809a38b1b62d66171fb2309285a4b1122919e10f28693ffdc4570ed5df0dc24a4e8117fa6c338e55f2cc8ab0a044e21c009fe290b69317b8069e791e15

Download Submit
\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe

Filesize
1.1MB

MD5
c717f02ff192f6d6a55d88b6535439c7

SHA1
1d6d47f592a0a67a6324cbf3abdec7bd2960074a

SHA256
dfdb5bdbe78f1b430cdb7aec158ec7b698c6bec067409bcc35c53f14f0596f02

SHA512
49e77201241d21501b15844040ed4bc4fdb8206250a4c39d587e678c468fb8cc69560bc91288e46e56a9a5144d2ab50d5bb93a1391991bbd3226694d862a183b

Download Submit
\Users\Admin\AppData\Local\Temp\is-MUVB2.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-MUVB2.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
\Users\Admin\AppData\Local\Temp\is-MUVB2.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-NT5R8.tmp\2f74d868692ce50e073cfdd6a2fbafa3.tmp

Filesize
690KB

MD5
a4a2a684c1454484e5b95a81c1bd1b34

SHA1
fcb5a95d4847a296f938a0f2e1b2d286d8c728a1

SHA256
6155c75f1b12a43374733984467f26adaf930b8b5c56e2986e3da0ffdcd13653

SHA512
7c9866bdb41e06de09a805efce06a6a2bcbea544f9dc7834c716d4ae7d15f413283782ec17a158aa8b35e247f20622fb65f803cb5c000820c164627ece5f9aef

Download Submit
memory/1152-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1152-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1272-44-0x00000000037E0000-0x0000000003B0D000-memory.dmp

Filesize
3.2MB

Download
memory/1272-59-0x00000000037E0000-0x0000000003B0D000-memory.dmp

Filesize
3.2MB

Download
memory/1272-58-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1272-7-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1272-56-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2608-45-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2608-47-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2608-46-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2608-50-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-72-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-76-0x00000000026D0000-0x0000000002772000-memory.dmp

Filesize
648KB

Download
memory/2728-52-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-62-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-65-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-66-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-69-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-54-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-75-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-57-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-77-0x00000000026D0000-0x0000000002772000-memory.dmp

Filesize
648KB

Download
memory/2728-83-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-86-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-89-0x00000000026D0000-0x0000000002772000-memory.dmp

Filesize
648KB

Download
memory/2728-90-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-93-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-96-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-99-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-103-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2728-106-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download

Analysis

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