socks5systemz | 934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb

General

Target

934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.exe
Size

4.3MB
MD5

a50b54bc7a00fa494fff6d15ff3617ea
SHA1

a488bc484064dbb55d04cfd60343bfa132f5d4f8
SHA256

934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb
SHA512

4d001bc2e3e6252e98890ea61b96ceff1aaa100071f006452f6ba461ac9c0b166e19b12272a575270231fd5473b792cb225bb27c631541fce5b25705d9f5ad0d
SSDEEP

98304:CofHhzzOSAGlMb8U4IHgG84P+fQmcqzL0nvtQxKC:JVFMb8i8bfc8glQsC

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://buuqlho.com/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd12c9ee93993d

http://buuqlho.com/search/?q=67e28dd86c0ea7794406f94d7c27d78406abdd88be4b12eab517aa5c96bd86e994844d885a8bbc896c58e713bc90c91136b5281fc235a925ed3e55d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee979932cc699510

Signatures

Detect Socks5Systemz Payload 5 IoCs

resource	yara_rule
behavioral1/memory/696-70-0x00000000008D0000-0x0000000000972000-memory.dmp	family_socks5systemz
behavioral1/memory/696-75-0x00000000008D0000-0x0000000000972000-memory.dmp	family_socks5systemz
behavioral1/memory/696-84-0x00000000008D0000-0x0000000000972000-memory.dmp	family_socks5systemz
behavioral1/memory/696-97-0x00000000008D0000-0x0000000000972000-memory.dmp	family_socks5systemz
behavioral1/memory/696-98-0x00000000008D0000-0x0000000000972000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp
1080	mp3tagfreeedition.exe
696	mp3tagfreeedition.exe

Loads dropped DLL 3 IoCs

pid	Process
3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp
3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp
3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

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

pid	Process
3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 3936	1064	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.exe	84
PID 1064 wrote to memory of 3936	1064	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.exe	84
PID 1064 wrote to memory of 3936	1064	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.exe	84
PID 3936 wrote to memory of 1080	3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp	88
PID 3936 wrote to memory of 1080	3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp	88
PID 3936 wrote to memory of 1080	3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp	88
PID 3936 wrote to memory of 696	3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp	89
PID 3936 wrote to memory of 696	3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp	89
PID 3936 wrote to memory of 696	3936	934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp	89

C:\Users\Admin\AppData\Local\Temp\934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.exe
"C:\Users\Admin\AppData\Local\Temp\934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Users\Admin\AppData\Local\Temp\is-NOCT6.tmp\934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NOCT6.tmp\934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp" /SL5="$60068,4109893,54272,C:\Users\Admin\AppData\Local\Temp\934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3936
- - C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe
    "C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1080
- - C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe
    "C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe" -s
    3⤵
    - Executes dropped EXE
    PID:696

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\MP3 Tag Free Edition\mp3tagfreeedition.exe

Filesize
2.2MB

MD5
47d887159e8a3b3754445ec500ecaf2d

SHA1
fd4546f858a7cc47ac55aa9bf04abe0e9b362a9a

SHA256
47f5036f5af98d96db4a95a97c84aedcdd6db65b6f44ceff4d1290e2b5807e79

SHA512
e5e25794efda049f9d8acab1ad26c7f7b20f8282876c71e3ba3d5e58c2ed9554f88df527e93a78103babe27e882a3d8b212bacdb9e3d80c2bf828d1f56834143

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4F98C.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4F98C.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NOCT6.tmp\934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb.tmp

Filesize
680KB

MD5
f16b357539d90911e922bd661ee02c75

SHA1
aa994a25bbd19bb895f0a38b56aa24b3cec42f18

SHA256
4ef21abb4be45ece7aaf2ba6c39ecfe952dbcee0f3a10b9e269baac445e9ed54

SHA512
0e3c90b91eac465e1a36ba99b71318045194407f9d66c180fe3ed92b5399c96cb14b3cd4609cf622db2e1d6e4e0d26e8ae60110142adb685ff052faaeef6c1ee

Download Submit
memory/696-83-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-87-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-105-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-102-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-98-0x00000000008D0000-0x0000000000972000-memory.dmp

Filesize
648KB

Download
memory/696-97-0x00000000008D0000-0x0000000000972000-memory.dmp

Filesize
648KB

Download
memory/696-52-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-96-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-93-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-55-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-90-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-59-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-60-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-63-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-66-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-69-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-70-0x00000000008D0000-0x0000000000972000-memory.dmp

Filesize
648KB

Download
memory/696-74-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-75-0x00000000008D0000-0x0000000000972000-memory.dmp

Filesize
648KB

Download
memory/696-80-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/696-84-0x00000000008D0000-0x0000000000972000-memory.dmp

Filesize
648KB

Download
memory/1064-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1064-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1064-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1080-49-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/1080-46-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/1080-45-0x0000000000400000-0x0000000000634000-memory.dmp

Filesize
2.2MB

Download
memory/3936-7-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/3936-56-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/3936-54-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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