socks5systemz | 6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082

General

Target

6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe
Size

4.5MB
MD5

b4b2735aa074e5262a9d5d36da93f100
SHA1

8df855952ffb4d5d7ce1ea175331f76a983de985
SHA256

6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082
SHA512

df2c9c2f8664e04fe48689934a508a3bf0b5740a23a57687c69f11c477d9fbbfebe6e0495536fd78a1c4bf648c4932c614c731d0ad96f1a0a4ff39fd49d1df8a
SSDEEP

98304:qhenYs3HYBso2hwqgzMX7HqUDndxTDTbICJ/ffQbWNRv8Mhl:5Ys3HYBs3hwqxXeU3D3ICJnYbWNRUMr

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bmfqkhy.com/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ffb11c1ec979b32

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/224-91-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz
behavioral2/memory/224-96-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz
behavioral2/memory/224-105-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz

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

Processes:

6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmpplayercodecpack.exeplayercodecpack.exe

pid process

1144 6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
5068 playercodecpack.exe
224 playercodecpack.exe

Loads dropped DLL 3 IoCs

Processes:

6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp

pid	process
1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.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

description	ioc
Destination IP	45.155.250.90

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp

description	pid	process	target process
PID 4880 wrote to memory of 1144	4880	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
PID 4880 wrote to memory of 1144	4880	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
PID 4880 wrote to memory of 1144	4880	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
PID 1144 wrote to memory of 5068	1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp	playercodecpack.exe
PID 1144 wrote to memory of 5068	1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp	playercodecpack.exe
PID 1144 wrote to memory of 5068	1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp	playercodecpack.exe
PID 1144 wrote to memory of 224	1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp	playercodecpack.exe
PID 1144 wrote to memory of 224	1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp	playercodecpack.exe
PID 1144 wrote to memory of 224	1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp	playercodecpack.exe

C:\Users\Admin\AppData\Local\Temp\6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe
"C:\Users\Admin\AppData\Local\Temp\6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4880

C:\Users\Admin\AppData\Local\Temp\is-1PV4P.tmp\6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
"C:\Users\Admin\AppData\Local\Temp\is-1PV4P.tmp\6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp" /SL5="$60192,4420357,53248,C:\Users\Admin\AppData\Local\Temp\6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1144

C:\Users\Admin\AppData\Local\Player Codec Pack\playercodecpack.exe
"C:\Users\Admin\AppData\Local\Player Codec Pack\playercodecpack.exe" -i
3⤵
- Executes dropped EXE
PID:5068

C:\Users\Admin\AppData\Local\Player Codec Pack\playercodecpack.exe
"C:\Users\Admin\AppData\Local\Player Codec Pack\playercodecpack.exe" -s
3⤵
- Executes dropped EXE
PID:224

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

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Downloads

C:\Users\Admin\AppData\Local\Player Codec Pack\playercodecpack.exe
Filesize
1.9MB

MD5
06ac5ec8a5bd7a63af2e1266f6757940

SHA1
88a401466c151834c980eaaee9bccf1cd29c2c80

SHA256
2e66b1c1c4c2f34ea9e7a28c4f0e66eb5f04515089664cfd1c1a729cf74ac9ce

SHA512
5ed96d313bc17c3535e768f018112b1e5161793a4123cbcbebc753a35fb97a13bb9096cd5bff122f3e9c524237dabb5411f3bec3dd8bc709042068122cc2baeb

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1PV4P.tmp\6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
Filesize
664KB

MD5
c3680bc8d86efd9f9283ba7b09f45380

SHA1
edf71b68991cdfa8d2b8dcf61561d4b5a8576f50

SHA256
fbd05c15e64825b14254596dbab20e6392b23f5fdb2edccf47eca42f7e80573b

SHA512
24f89c8098a2d4b0679e645ff48f1893d291df7c70ffc900c07b16684c425f669ff35c926c00ae080deac67bdb0565f7bf744d9e111157f0cb16567cf2d15a3e

Download Submit
\Users\Admin\AppData\Local\Temp\is-VAJC6.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-VAJC6.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/224-108-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-91-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/224-139-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-136-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-133-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-130-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-72-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-127-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-124-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-75-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-121-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-117-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-80-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-81-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-84-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-87-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-90-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-114-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-95-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-96-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/224-101-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-104-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/224-105-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/224-111-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/1144-9-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1144-76-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1144-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4880-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4880-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5068-77-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/5068-69-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/5068-68-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/5068-65-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download
memory/5068-64-0x0000000000400000-0x00000000005F5000-memory.dmp

Filesize
2.0MB

Download

pid	process
1144	6b57c639d39696261e9bbeb0cb33814750d028b04f1d853ec9d6822cdac16082.exe.tmp
5068	playercodecpack.exe
224	playercodecpack.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads