socks5systemz | 02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2

General

Target

02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe
Size

1.9MB
MD5

6f2a633aec291dfc2b5fa43bd5dfd2cd
SHA1

8030f4816ab8258a955c13f41bf57426b47cac71
SHA256

02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2
SHA512

75228c3d161fe193bea5e7cd06e7b65b5b2b2f8858d72ae91f4f3ad8282404a77f9878993b9d7fd16122955787748b4e789fb717fe0320c5f4be1ccf48e32293
SSDEEP

24576:320bsJdKwgmt6ZU+BOAqNMJ8RAKH/9gd8A2L96o/r76CHtIeiRRvO0xEidnVNqX3:32XI1mcXq7pH1Q6/6CNKvFVN2gKNB

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bvjxpeu.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a678bfe19c0e69d

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2520-78-0x0000000002650000-0x00000000026F4000-memory.dmp	family_socks5systemz
behavioral1/memory/2520-77-0x0000000002650000-0x00000000026F4000-memory.dmp	family_socks5systemz
behavioral1/memory/2520-88-0x0000000002650000-0x00000000026F4000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp
2888	linatext.exe
2520	linatext.exe

Loads dropped DLL 5 IoCs

pid	Process
2320	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe
1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp
1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp
1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp
1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.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	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 WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 1352	2320	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe	28
PID 2320 wrote to memory of 1352	2320	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe	28
PID 2320 wrote to memory of 1352	2320	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe	28
PID 2320 wrote to memory of 1352	2320	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe	28
PID 2320 wrote to memory of 1352	2320	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe	28
PID 2320 wrote to memory of 1352	2320	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe	28
PID 2320 wrote to memory of 1352	2320	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe	28
PID 1352 wrote to memory of 2888	1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp	29
PID 1352 wrote to memory of 2888	1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp	29
PID 1352 wrote to memory of 2888	1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp	29
PID 1352 wrote to memory of 2888	1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp	29
PID 1352 wrote to memory of 2520	1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp	30
PID 1352 wrote to memory of 2520	1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp	30
PID 1352 wrote to memory of 2520	1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp	30
PID 1352 wrote to memory of 2520	1352	02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp	30

C:\Users\Admin\AppData\Local\Temp\02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe
"C:\Users\Admin\AppData\Local\Temp\02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\is-BFI3A.tmp\02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-BFI3A.tmp\02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp" /SL5="$70120,1602939,54272,C:\Users\Admin\AppData\Local\Temp\02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1352
- - C:\Users\Admin\AppData\Local\Lina Text\linatext.exe
    "C:\Users\Admin\AppData\Local\Lina Text\linatext.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2888
- - C:\Users\Admin\AppData\Local\Lina Text\linatext.exe
    "C:\Users\Admin\AppData\Local\Lina Text\linatext.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2520

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\Lina Text\linatext.exe

Filesize
1.8MB

MD5
8f89aab450e99acec53a7f739227ee94

SHA1
84f546c2febecd789fb636c0008efab28b383425

SHA256
c033e4375f89df29de9cdef0964854208457cf516efebc65b0fcf042e6d30a02

SHA512
3dc2a230560766e0eb901d8c7b18dbdc730507dbff2c6fabf85603e7964b73c7696361d8dde6a31c5cccfde1ec714329d4a3e112fce04e55586053622d9965f6

Download Submit
\Users\Admin\AppData\Local\Lina Text\linatext.exe

Filesize
768KB

MD5
ee1b02952ca6ab5d886dc9ed86289404

SHA1
42874e4eb90bd2c0fa64a1a8484178dc94e1441b

SHA256
caf5a565884c7b2118b68eab81c9691ebffa1d55f062b810c36df25a502ad9c8

SHA512
fb5088d687ba182e6a8ac66a8d730090fed2a44e1f447663fb9d1dcddfe757ce28d5b34f427bf3aafc5decbd39b2280e8aea60f0676e2bddc1b07faae4324f93

Download Submit
\Users\Admin\AppData\Local\Temp\is-8PJIM.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-8PJIM.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-BFI3A.tmp\02598dde0b20d2336e62637856b0394c199a06e91972272edc3df39c75be5ad2.tmp

Filesize
677KB

MD5
33da9dc521f467c0405d3ef5377ce04b

SHA1
5249d7ce5dfabe5ee6d2fc7d3f3eba1e866b7d1f

SHA256
dbab8a7b2b45fc7001d5e34d3d45ccbe93a7591f12910281acf2c32f8c4e631c

SHA512
a3093637e1d731eab58080e10706db1afbf6e79fbac6593733b61033f97875ecbe230311e9741d349625ec3a66a6435318846d35290db8cd00af76d692699a55

Download Submit
memory/1352-8-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1352-42-0x00000000032D0000-0x000000000349B000-memory.dmp

Filesize
1.8MB

Download
memory/1352-56-0x00000000032D0000-0x000000000349B000-memory.dmp

Filesize
1.8MB

Download
memory/1352-55-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1352-52-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2320-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2320-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2520-82-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-71-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-54-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-105-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-102-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-57-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-60-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-61-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-64-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-65-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-68-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-98-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-75-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-78-0x0000000002650000-0x00000000026F4000-memory.dmp

Filesize
656KB

Download
memory/2520-77-0x0000000002650000-0x00000000026F4000-memory.dmp

Filesize
656KB

Download
memory/2520-95-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-85-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-88-0x0000000002650000-0x00000000026F4000-memory.dmp

Filesize
656KB

Download
memory/2520-89-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2520-92-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2888-44-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2888-49-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2888-45-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2888-46-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download

Analysis

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