socks5systemz | 4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d

General

Target

4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe
Size

2.1MB
MD5

a919a7be89a74990b28ca614eb215caa
SHA1

b8a4f828bcd7c083aa1b1c65b8fbab02b9c75f12
SHA256

4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d
SHA512

b69d70431ee9eb318b93e722dc1564062b106b7b5e539ad5edef041270535ecf0304b0844ee4f15da0c513bdb8af594d9da80b2061dac4c9708ee823b346f9a2
SSDEEP

49152:32tqx2/aldYc68PCaDYpnzGkzlyyLo4mxnQKKEa:mtc0ab/C9akzlDbAp7a

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bhnxdqi.com/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe12c7e8969838

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/3180-67-0x0000000000A90000-0x0000000000B32000-memory.dmp	family_socks5systemz
behavioral2/memory/3180-70-0x0000000000A90000-0x0000000000B32000-memory.dmp	family_socks5systemz
behavioral2/memory/3180-79-0x0000000000A90000-0x0000000000B32000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1420	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp
1460	polyglot32.exe
3180	polyglot32.exe

Loads dropped DLL 1 IoCs

pid	Process
1420	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.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 WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 1420	2380	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe	80
PID 2380 wrote to memory of 1420	2380	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe	80
PID 2380 wrote to memory of 1420	2380	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe	80
PID 1420 wrote to memory of 1460	1420	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp	81
PID 1420 wrote to memory of 1460	1420	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp	81
PID 1420 wrote to memory of 1460	1420	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp	81
PID 1420 wrote to memory of 3180	1420	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp	82
PID 1420 wrote to memory of 3180	1420	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp	82
PID 1420 wrote to memory of 3180	1420	4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp	82

C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe
"C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp" /SL5="$F0214,1834192,54272,C:\Users\Admin\AppData\Local\Temp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe
    "C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1460
- - C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe
    "C:\Users\Admin\AppData\Local\Poly Glot Edit\polyglot32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3180

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\Poly Glot Edit\polyglot32.exe

Filesize
2.6MB

MD5
7dad002a314fdd2356f9ddb72434a1db

SHA1
8d7604779077869abd5f9b2782cd0d8146fe1737

SHA256
eb70ccead09aa80331e58f95b7b9eaa65014b39baf2ca335bc1b9fc039df475c

SHA512
abdbfa80c3da57538485b681970e99fd374c721b6ead978c01aa169db35fba2e54b9df413eebf0024c9eb84f4edae21ec1b5beaa6a79df46058bac2d4b86cf28

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6CPB0.tmp\4dd0b18faf98bf40222dad19f3d3a3644b93c30242b11a0d2a16ae2e99370b5d.tmp

Filesize
677KB

MD5
e3c3ff614a631373b2a2e6d45ea2ac14

SHA1
70f42dbed691518993cd86cc803845b68e63151d

SHA256
ef6a7f6238c4f5042a7c806a6edf5fb21c24dead0e3bda36eadaf1fc121a0116

SHA512
a206357efbc6a257ce88ffd9a022d8133c6a8cf2c44796f3a80967e71cb9a144643146106f94ff7e5bac4aadf50f959d2e2783a2ad11a7ed7ca123d463486545

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GG1LI.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1420-50-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/1420-48-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1420-7-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/1460-39-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/1460-38-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/1460-43-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/1460-53-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/2380-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2380-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2380-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3180-55-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-70-0x0000000000A90000-0x0000000000B32000-memory.dmp

Filesize
648KB

Download
memory/3180-54-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-46-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-58-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-61-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-64-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-67-0x0000000000A90000-0x0000000000B32000-memory.dmp

Filesize
648KB

Download
memory/3180-68-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-49-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-75-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-78-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-79-0x0000000000A90000-0x0000000000B32000-memory.dmp

Filesize
648KB

Download
memory/3180-82-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-85-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-88-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-91-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-95-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download
memory/3180-98-0x0000000000400000-0x0000000000696000-memory.dmp

Filesize
2.6MB

Download

Analysis

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