socks5systemz | 1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5

General

Target

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe
Size

4.9MB
MD5

1474c5d842d1a4ba2c592930a42c3a80
SHA1

223db78270bb75a60d47586974c97bfdb0556ba1
SHA256

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5
SHA512

9ac4c9aa4d182fa5abb039e04066535cd43b58f2315b41127e116efb827e78dae146516818d42e7b6d8beef17a6f55a234b68c7f9457e65e02b059117785a7d4
SSDEEP

98304:mln9CPsrHDI8ksDtHnEvHohXESl1QGMFFEit915vL5Jk2IVMJcll:MnkBJsdnlhUSl1SlUfll

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

dtupxke.info

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4868-84-0x0000000002830000-0x00000000028D2000-memory.dmp	family_socks5systemz

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

Processes:

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmpstarsaudioconverter32.exestarsaudioconverter32.exe

pid process

4724 1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
3008 starsaudioconverter32.exe
4868 starsaudioconverter32.exe
Loads dropped DLL 1 IoCs

Processes:

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

pid process

4724 1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 141.98.234.31
Destination IP 152.89.198.214
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 FindShellTrayWindow 1 IoCs

Processes:

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

pid process

4724 1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

pid	process
4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
3008	starsaudioconverter32.exe
4868	starsaudioconverter32.exe

pid	process
4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

description	ioc
Destination IP	141.98.234.31
Destination IP	152.89.198.214
Destination IP	91.211.247.248

pid	process
4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp

description	pid	process	target process
PID 4528 wrote to memory of 4724	4528	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
PID 4528 wrote to memory of 4724	4528	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
PID 4528 wrote to memory of 4724	4528	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
PID 4724 wrote to memory of 3008	4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 4724 wrote to memory of 3008	4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 4724 wrote to memory of 3008	4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 4724 wrote to memory of 4868	4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 4724 wrote to memory of 4868	4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe
PID 4724 wrote to memory of 4868	4724	1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp	starsaudioconverter32.exe

C:\Users\Admin\AppData\Local\Temp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe
"C:\Users\Admin\AppData\Local\Temp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4528

C:\Users\Admin\AppData\Local\Temp\is-VFNES.tmp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
"C:\Users\Admin\AppData\Local\Temp\is-VFNES.tmp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp" /SL5="$5015C,4863554,54272,C:\Users\Admin\AppData\Local\Temp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4724

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -i
3⤵
- Executes dropped EXE
PID:3008

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -s
3⤵
- Executes dropped EXE
PID:4868

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\OrangeStars Audio Converter\starsaudioconverter32.exe
Filesize
2.4MB

MD5
c9d0cf9a565c8f17d8e33bc137e2c0e9

SHA1
000a2ac7570380d14b51e35742ce0678c922c7b9

SHA256
ac2e61a91dec6e911887f646632e8fb571988752002d105de19b23b1e338346a

SHA512
c880b6df08966eddf545c9e680f44fc2473b55f387b8551b7e00a733df617dd5c0d4c8ad3ea49beac7e485a036b4189199127c606445a425d5096c7cd4b2187a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-D2FQ9.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VFNES.tmp\1c9e36b4d27228bcec7c18944a66270a93c8e030c911bf8ff07b30d7fcc769e5.tmp
Filesize
680KB

MD5
e805fd8d14185debe4999b420e788690

SHA1
014b87617a2f2c62530ec2da91a5be0d8078c098

SHA256
720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

SHA512
33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

Download Submit
memory/3008-74-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/3008-59-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/3008-60-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/3008-64-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4528-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4528-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4528-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4724-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4724-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4868-80-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-89-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-70-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-77-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-67-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-83-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-84-0x0000000002830000-0x00000000028D2000-memory.dmp

Filesize
648KB

Download
memory/4868-73-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-94-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-97-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-100-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-103-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-106-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-109-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-112-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/4868-115-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download

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