socks5systemz | 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd

General

Target

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe
Size

4.8MB
MD5

8e277e7022265b11d4f9b4f2c0b051d2
SHA1

528ff960a2acc15625e5be70dfe78f7765d1a960
SHA256

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd
SHA512

9cb9d7674db284a2cf4cf397ad68c3c2efd2a540973c6fe51083c933325c2faef1e86e551af64902e763d8ddd6fd40c30f1c4d509242bcd472a395c5c28cc25b
SSDEEP

98304:mSUc9/UUccFNMHdS/fGM4ypm3mSUX7N3KhTfb0g:7phRFNQKfGMLgXUX7shjbz

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bpypnkn.com

http://bpypnkn.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff712c6e6909d3b

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3964-86-0x0000000000A00000-0x0000000000AA2000-memory.dmp	family_socks5systemz

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

Processes:

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmpaudioconverter.exeaudioconverter.exe

pid process

2564 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
2656 audioconverter.exe
3964 audioconverter.exe
Loads dropped DLL 1 IoCs

Processes:

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

pid process

2564 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.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 152.89.198.214
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:

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

pid process

2564 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

pid	process
2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
2656	audioconverter.exe
3964	audioconverter.exe

pid	process
2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

description	pid	process	target process
PID 4480 wrote to memory of 2564	4480	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 4480 wrote to memory of 2564	4480	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 4480 wrote to memory of 2564	4480	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 2564 wrote to memory of 2656	2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 2564 wrote to memory of 2656	2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 2564 wrote to memory of 2656	2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 2564 wrote to memory of 3964	2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 2564 wrote to memory of 3964	2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 2564 wrote to memory of 3964	2564	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe

C:\Users\Admin\AppData\Local\Temp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe
"C:\Users\Admin\AppData\Local\Temp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4480

C:\Users\Admin\AppData\Local\Temp\is-2A15I.tmp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
"C:\Users\Admin\AppData\Local\Temp\is-2A15I.tmp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp" /SL5="$B004C,4814186,54272,C:\Users\Admin\AppData\Local\Temp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2564

C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -i
3⤵
- Executes dropped EXE
PID:2656

C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -s
3⤵
- Executes dropped EXE
PID:3964

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2392 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:4320

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\Free Audio Converter\audioconverter.exe
Filesize
2.9MB

MD5
54b713718dd11ef2d4a28598ff7f3f92

SHA1
f2e2365c2c97febcc17630501a66946220c2218a

SHA256
09ece648ee63ff99a66fd767d1c582f93e4c6fafd6e38009c31681011669b3f5

SHA512
e14068fc698b99d44ab692e7d8335cdfd3872e4347cb518a995b0be9fb10a432d2b63553c604d0b203ea7e2f2a0233f40c4ffa13a392fdf1364913697bb7bb33

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-2A15I.tmp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
Filesize
680KB

MD5
44b9ca6a625740ff4684e46b706c1079

SHA1
e1437bee59b5335ef6fe7b61ff815b5098f2e402

SHA256
a32a6913b656b5e99bccaae183f08024a2118372c86c4bc6a45e8ae6816f2831

SHA512
59738c2e69631c98aeb33c8c70fc0b85cc9f139d2fa462c03eee3d3c0ab94bf33d669f5ca50b3ae9b370805d446ed43985d711f0817fd228708045c269728a87

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-G4R9K.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2564-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2564-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2656-62-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2656-66-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2656-60-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2656-61-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-71-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-89-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-113-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-109-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-75-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-78-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-81-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-84-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-86-0x0000000000A00000-0x0000000000AA2000-memory.dmp

Filesize
648KB

Download
memory/3964-105-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-93-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-97-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-100-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/3964-103-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/4480-35-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4480-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4480-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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