socks5systemz | b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5

General

Target

b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.exe
Size

4.9MB
MD5

56e259cec50be79a1505d8bbcb742e2f
SHA1

2818425da19e1db91e550560efb0f28a0044b86e
SHA256

b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5
SHA512

0c2df7e5c0bbf5c68409e5306eed1862df854c7b076c9104d1f67b7256594741043092cca66dabc8376f09c0de4e184cf6bab8398d1faa21b96059e44d1f9729
SSDEEP

98304:e9s/7jr+4vqwuYueRrvZhcsnFkm6xOjTYhxhkVog1+vxU:RjK4SkuEv3Vkm6x+Yr6ogMvW

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://ddcdutz.info/search/?q=67e28dd83a09fa2d165cad4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978a571ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffa15c4e7909d3b

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2352-92-0x0000000002790000-0x0000000002832000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp
1552	keratodjprof.exe
2352	keratodjprof.exe

Loads dropped DLL 3 IoCs

pid	Process
1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp
1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp
1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 1704	4164	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.exe	80
PID 4164 wrote to memory of 1704	4164	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.exe	80
PID 4164 wrote to memory of 1704	4164	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.exe	80
PID 1704 wrote to memory of 1552	1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp	81
PID 1704 wrote to memory of 1552	1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp	81
PID 1704 wrote to memory of 1552	1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp	81
PID 1704 wrote to memory of 2352	1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp	82
PID 1704 wrote to memory of 2352	1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp	82
PID 1704 wrote to memory of 2352	1704	b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp	82

C:\Users\Admin\AppData\Local\Temp\b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.exe
"C:\Users\Admin\AppData\Local\Temp\b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Users\Admin\AppData\Local\Temp\is-UFKLU.tmp\b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-UFKLU.tmp\b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp" /SL5="$40218,4874549,54272,C:\Users\Admin\AppData\Local\Temp\b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe
    "C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1552
- - C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe
    "C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe

Filesize
2.0MB

MD5
34b69661f901fc1130442da154498674

SHA1
3b25e6569e20f770e11df2648c9453a89f048406

SHA256
d969dc9c2c3b0c5adb8d012479075b88dbe2bd42f1abea82c11c55adf64b09aa

SHA512
937071cf5f61004d71a2caf4549e4db00891532c1ee649a077b5e0a507deb4a21dc6babfd74b0e86c2bd8c9f5125938e31ab82fb6c07c3ae03b42be07d655b6e

Download Submit
C:\Users\Admin\AppData\Local\Kerato DJ Prof\libeay32.dll

Filesize
1.9MB

MD5
876a839023b8f962a72d295da7495734

SHA1
62a7728679bc18784b1fbf1d013f7cece18cbec9

SHA256
a757d773da406411fb977761f6e56f016d48d224aedaf3d875ed4d4a9ede6158

SHA512
e1b23a2f5ec0100ff874ca075bbd0f90e9065a90fec66861f99df603d7aaa9db8e8ec326710fdc11ad41d01befe4ea3077136127acf613614d0d12ff23bec6c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-B6H14.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-B6H14.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
c948b46ea1eb5757ecf75404571c31ce

SHA1
6665b8d48fea3538c7e043b7ab700778d86307a3

SHA256
3c5b63d61e00f30790c7df0f048473cb04d17e175d8177e86c7cf5062dcaad24

SHA512
6b326b34c8142ef2b75df7f83aed11400a86d19806730bab0515ccfcd6eb2ef71d6db707dbd48d8f1f8ff9e3eb6626af80d38394ebaf2742ef3df0d0ebe4f256

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UFKLU.tmp\b647625f61f74e2b5d510a781c1dd6bd1d4945b4dfc6b54aa1ea47159b08f7a5.tmp

Filesize
696KB

MD5
ccee95cec1c0cfdb1e7ac88d545cca4f

SHA1
2821f4882e07236208b84bc6992677abbb0a8015

SHA256
a6616aae0d88eac34ce29b885526e8e3f4c7ac257ded1e59394c624787187875

SHA512
1b79e9d17183d14aafef7a7484728d517d3a1540797fc2a02d3b793be815b1d662e7f94b18b2ee9d03dd89d13f0a4df72d23cbe1e6441fe2a4c69b6728e27d14

Download Submit
memory/1552-69-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/1552-71-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/1552-66-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/1552-65-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/1704-77-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/1704-19-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/2352-92-0x0000000002790000-0x0000000002832000-memory.dmp

Filesize
648KB

Download
memory/2352-95-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-123-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-120-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-78-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-81-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-84-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-87-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-75-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-90-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-116-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-101-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-104-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-107-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-110-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/2352-113-0x0000000000400000-0x0000000000600000-memory.dmp

Filesize
2.0MB

Download
memory/4164-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4164-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4164-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing