socks5systemz | ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2

General

Target

ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.exe
Size

5.0MB
MD5

76387b539a94f7e78d784b9e6b9df3b8
SHA1

d52b9b7a62bbd96a5b294f3d51cd5f907faea77c
SHA256

ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2
SHA512

6b4b5b4bb43f60910aac929e9141e3f16dc84542840f50240621ba18c38858abf2d2f67fc18ebcf74e31e1f57a775f26afda812ab7d35ac37a4913d667c085a8
SSDEEP

98304:m7jtycBh0nwBw3adDzbkg//ekn27+HZbKQllFHhFd3:ON+wm3adHbl/HnlZbKI/d3

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

cszmxau.net

http://cszmxau.net/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff712c4e8969832

http://cszmxau.net/search/?q=67e28dd83f5ff27c445aaa4e7c27d78406abdd88be4b12eab517aa5c96bd86e89d8644855a8bbc896c58e713bc90c91b36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d993fca6c941f

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2288-86-0x0000000002870000-0x0000000002912000-memory.dmp	family_socks5systemz
behavioral2/memory/2288-110-0x0000000002870000-0x0000000002912000-memory.dmp	family_socks5systemz
behavioral2/memory/2288-111-0x0000000002870000-0x0000000002912000-memory.dmp	family_socks5systemz

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

Processes:

ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exe

pid process

868 ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp
1684 m4atomp3freeconverter.exe
2288 m4atomp3freeconverter.exe
Loads dropped DLL 1 IoCs

Processes:

ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp

pid process

868 ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.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 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
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:

ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp

pid process

868 ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp

pid	process
868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp
1684	m4atomp3freeconverter.exe
2288	m4atomp3freeconverter.exe

pid	process
868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.exeed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp

description	pid	process	target process
PID 2572 wrote to memory of 868	2572	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.exe	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp
PID 2572 wrote to memory of 868	2572	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.exe	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp
PID 2572 wrote to memory of 868	2572	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.exe	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp
PID 868 wrote to memory of 1684	868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp	m4atomp3freeconverter.exe
PID 868 wrote to memory of 1684	868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp	m4atomp3freeconverter.exe
PID 868 wrote to memory of 1684	868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp	m4atomp3freeconverter.exe
PID 868 wrote to memory of 2288	868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp	m4atomp3freeconverter.exe
PID 868 wrote to memory of 2288	868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp	m4atomp3freeconverter.exe
PID 868 wrote to memory of 2288	868	ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp	m4atomp3freeconverter.exe

C:\Users\Admin\AppData\Local\Temp\ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.exe
"C:\Users\Admin\AppData\Local\Temp\ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2572

C:\Users\Admin\AppData\Local\Temp\is-6A3AA.tmp\ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp
"C:\Users\Admin\AppData\Local\Temp\is-6A3AA.tmp\ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp" /SL5="$40220,4972681,54272,C:\Users\Admin\AppData\Local\Temp\ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:868

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i
3⤵
- Executes dropped EXE
PID:1684

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -s
3⤵
- Executes dropped EXE
PID:2288

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
Filesize
3.1MB

MD5
df6d19ba139127fa60d1b5cc4199ab62

SHA1
35bbd7d86817728c0902753ec755a72685a69225

SHA256
296df776d9840e81270302037b0a90252dc955cd0256642dd3342095fac94d18

SHA512
c85058f49256f70e440fc73df4fec5b984ac35f80333642a00e6c5dc4e39b16f6bb46db0cf4bf8d37e4017a56eaceffea985ab48154a59b380cba770d2df44b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-3QNHN.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6A3AA.tmp\ed54f10a6f02a5a917f5a94b042b180ee3108a23f94b3ae1c466f2bb5e65b0d2.tmp
Filesize
680KB

MD5
dafff71ba13e58daac2c21ed0ed54458

SHA1
ec169d6088ee3a539030ef630164dae1dd7d9a80

SHA256
167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb

SHA512
ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719

Download Submit
memory/868-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/868-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1684-65-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/1684-59-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/1684-60-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/1684-63-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-74-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-94-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-118-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-115-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-71-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-111-0x0000000002870000-0x0000000002912000-memory.dmp

Filesize
648KB

Download
memory/2288-77-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-80-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-83-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-86-0x0000000002870000-0x0000000002912000-memory.dmp

Filesize
648KB

Download
memory/2288-89-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-68-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-97-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-100-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-103-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-106-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-109-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/2288-110-0x0000000002870000-0x0000000002912000-memory.dmp

Filesize
648KB

Download
memory/2572-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2572-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2572-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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