socks5systemz | c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e

General

Target

c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.exe
Size

4.5MB
MD5

ad4bf837e35435f406a1b5963d6c4a68
SHA1

a88a8c867a86bcb2a53ea4fcc205a03b8ad74f34
SHA256

c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e
SHA512

3bfd92723480e39161e67228511c3eb688925bee09093b19e396f1dc29d1df67b5e0c64d7f9cecb3f2d75ee7fd388f352fe07265600b00483f2590aa9eebaa84
SSDEEP

98304:moBpTsudQVDycf4Dl2OnEIPjtbklS7l4ioQZh3177lH:vsuk4B2BIPBAMmiPPdH

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ckuycbq.net

http://ckuycbq.net/search/?q=67e28dd86e09a721465dff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f771ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff716c3e99c9f3b

http://ckuycbq.net/search/?q=67e28dd86e09a721465dff1c7c27d78406abdd88be4b12eab517aa5c96bd86ee9d8e4f895a8bbc896c58e713bc90c91136b5281fc235a925ed3e54d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9d38cb669316

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/5096-85-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz
behavioral1/memory/5096-108-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz
behavioral1/memory/5096-109-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz

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

Processes:

c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmpplayercloudfree32.exeplayercloudfree32.exe

pid process

2724 c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp
1032 playercloudfree32.exe
5096 playercloudfree32.exe
Loads dropped DLL 1 IoCs

Processes:

c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp

pid process

2724 c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.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 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
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:

c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp

pid process

2724 c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp

pid	process
2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp
1032	playercloudfree32.exe
5096	playercloudfree32.exe

pid	process
2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.exec2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp

description	pid	process	target process
PID 4996 wrote to memory of 2724	4996	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.exe	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp
PID 4996 wrote to memory of 2724	4996	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.exe	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp
PID 4996 wrote to memory of 2724	4996	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.exe	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp
PID 2724 wrote to memory of 1032	2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp	playercloudfree32.exe
PID 2724 wrote to memory of 1032	2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp	playercloudfree32.exe
PID 2724 wrote to memory of 1032	2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp	playercloudfree32.exe
PID 2724 wrote to memory of 5096	2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp	playercloudfree32.exe
PID 2724 wrote to memory of 5096	2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp	playercloudfree32.exe
PID 2724 wrote to memory of 5096	2724	c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp	playercloudfree32.exe

C:\Users\Admin\AppData\Local\Temp\c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.exe
"C:\Users\Admin\AppData\Local\Temp\c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4996

C:\Users\Admin\AppData\Local\Temp\is-67SAE.tmp\c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp
"C:\Users\Admin\AppData\Local\Temp\is-67SAE.tmp\c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp" /SL5="$A00EA,4439078,54272,C:\Users\Admin\AppData\Local\Temp\c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2724

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe" -i
3⤵
- Executes dropped EXE
PID:1032

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe" -s
3⤵
- Executes dropped EXE
PID:5096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\playercloudfree32.exe
Filesize
2.6MB

MD5
d6581393bb4345d2dd92f281e1d727aa

SHA1
5e2d5825c503f5f86a09e318fe54daaa62d28ad4

SHA256
b40578a2eac7fb5b12b5998093bfae1591518ac92be16c7976afa69ac458ca81

SHA512
bfcc54501a37219d76dc2d8c1341491a053aa382bf1f9c50ae710e6fac12359e831ba1d8ecf9d55210d7690ae72c496eb05228a4167ab33209c9c8c9da9919c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-67SAE.tmp\c2bd72f3435a214f6edca8dfc138010813d1931a810ffa0376464106ce5ecb4e.tmp
Filesize
680KB

MD5
18e1f77fda7cca9e6162bbfc406b4340

SHA1
b73e1046cb4dc7c12923d84eb311e27acfae795b

SHA256
e46557f8e4fce33af732b6d1eff19f00105f6e112de1b5a555aa233988858ab3

SHA512
71a1ac2b0aec70d1f47625850bbf916abb5d960ba7ec6a37cb8f22037c3839917134b6c82955feff37772dddb2d5ad34f76c9bb68337729c4159ab451eaffe57

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GB4L0.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1032-59-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/1032-61-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/1032-63-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/1032-64-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/2724-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2724-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4996-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4996-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4996-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5096-73-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-95-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-67-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-76-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-79-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-82-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-85-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/5096-87-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-92-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-70-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-98-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-101-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-104-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-107-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-108-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/5096-109-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/5096-113-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download
memory/5096-116-0x0000000000400000-0x000000000069E000-memory.dmp

Filesize
2.6MB

Download

Analysis

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