socks5systemz | 70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47

General

Target

70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe
Size

4.2MB
MD5

13a4e17f050d7deeac2bf404a9715a63
SHA1

81a8025d389ddb91b0b4471eda02c912cbd443c4
SHA256

70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47
SHA512

833f53603c063f6f12efa71e5c47690badb82d4ab03637cc51ef8cfaa39173c40d1333c3d243cb356d6ae1355cd3a7b1ec2d1841757bcee3b5c2a4756180e4cc
SSDEEP

98304:+Aopkt5DfHUUQ/i+/bpyiqwgt9K2GC9FdrhcYgA9md1ZO:bukcUmTbpymM9fGC9JXAXO

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bmiigko.com/search/?q=67e28dd86a5ba0284308f94b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f071ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a628cf614c9e69d

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2460-94-0x00000000021C0000-0x0000000002262000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp
2764	lamexp32.exe
2460	lamexp32.exe

Loads dropped DLL 5 IoCs

pid	Process
2740	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe
1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp
1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp
1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp
1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.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 15 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 1736	2740	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe	28
PID 2740 wrote to memory of 1736	2740	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe	28
PID 2740 wrote to memory of 1736	2740	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe	28
PID 2740 wrote to memory of 1736	2740	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe	28
PID 2740 wrote to memory of 1736	2740	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe	28
PID 2740 wrote to memory of 1736	2740	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe	28
PID 2740 wrote to memory of 1736	2740	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe	28
PID 1736 wrote to memory of 2764	1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp	29
PID 1736 wrote to memory of 2764	1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp	29
PID 1736 wrote to memory of 2764	1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp	29
PID 1736 wrote to memory of 2764	1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp	29
PID 1736 wrote to memory of 2460	1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp	30
PID 1736 wrote to memory of 2460	1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp	30
PID 1736 wrote to memory of 2460	1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp	30
PID 1736 wrote to memory of 2460	1736	70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp	30

C:\Users\Admin\AppData\Local\Temp\70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe
"C:\Users\Admin\AppData\Local\Temp\70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Users\Admin\AppData\Local\Temp\is-JFK3T.tmp\70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-JFK3T.tmp\70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp" /SL5="$3012E,4198372,54272,C:\Users\Admin\AppData\Local\Temp\70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1736
- - C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe
    "C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2764
- - C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe
    "C:\Users\Admin\AppData\Local\LameXP\lamexp32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2460

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\LameXP\libeay32.dll

Filesize
2.0MB

MD5
1176a2fcbc3cfb77207db7575dd6a522

SHA1
e0a854c77a65e542712c9fe3feae2331fcddb7f4

SHA256
553200e21658e7976d496c52cc1aeb50446b877ccda4f0b073a553ec3fb48560

SHA512
bb00340e4931342c4db499d68e98542f401a985c062810225ee661a7a289a885dab8c64f37fb231212ad2a5d703f3fd0528e8402fc1033cf4128d075714e3f34

Download Submit
\Users\Admin\AppData\Local\LameXP\lamexp32.exe

Filesize
2.1MB

MD5
8ea9fa4f1ef3fb13c4f1845e307faca5

SHA1
d669bd03858a9092b85b666bcef4afad0534afef

SHA256
e4c439f717a03e2c68a93978d5af3e54b9cb40bcaa2e0a616abc43bbd3f7eb01

SHA512
9dcde196d36aa2288fe8b3b5069c7b8911bfc8fdbf30ae80b9068b3da440e56d60d020e3b65f7e47ab878287c333499f9dfc53c30370efa11d5ebb850ea1e7da

Download Submit
\Users\Admin\AppData\Local\Temp\is-I4KRJ.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-I4KRJ.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-JFK3T.tmp\70d525fd4fdc5985da866c0ddb936781b6b58b1e4aae278abee3fb4ab4862f47.tmp

Filesize
695KB

MD5
73093a400f2c4c89373f6b40c31161ca

SHA1
1b63db72e1688b01ff690d8aba6d77c7c7a26afd

SHA256
a993dea351ccf12241f3622b729e547eace007e35bbca5bf13539224276adea4

SHA512
92a4b56cbb1aa743a7c315212183f36283e4dfeddcb531fd68eb1b4dab2e837cc1d6466c43053adc49db814ec76322a7da9868a1f4d38230796f223a7fed0971

Download Submit
memory/1736-78-0x00000000033B0000-0x00000000035C8000-memory.dmp

Filesize
2.1MB

Download
memory/1736-16-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1736-63-0x00000000033B0000-0x00000000035C8000-memory.dmp

Filesize
2.1MB

Download
memory/1736-76-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2460-109-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-93-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-139-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-134-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-73-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-131-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-128-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-77-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-125-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-81-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-84-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-87-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-90-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-122-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-94-0x00000000021C0000-0x0000000002262000-memory.dmp

Filesize
648KB

Download
memory/2460-100-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-103-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-106-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-119-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-112-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2460-115-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2740-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2740-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2740-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2764-69-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2764-65-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2764-70-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download
memory/2764-66-0x0000000000400000-0x0000000000618000-memory.dmp

Filesize
2.1MB

Download

Analysis

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