socks5systemz | 1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e

General

Target

1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe
Size

4.3MB
MD5

d82a5d515e202bd878e28860b88ccb77
SHA1

82bb20e6b538420c9da34b8a863790b8ea0f8c51
SHA256

1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e
SHA512

2614aca6c7907c18c84b85afd8ff0655f6971a1329c10254cb7412b197a967dd4262ce57e846f78bf201aa0436e76272771a2aae13151a88751c4f660fdf2088
SSDEEP

98304:C/n5kiTOOrVoKowIcqm6ZBCUAGpJg/pf+0L5AiLPziVCHQx3:KlOIVoKowIk63/A+8pf+Y5z2VCHQp

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bhytsjo.com

http://bhytsjo.com/search/?q=67e28dd86a0bf32e440fad1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978a471ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923f658dfc16c4ea96

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2996-78-0x0000000002600000-0x00000000026A2000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp
2892	disksettings.exe
2996	disksettings.exe

Loads dropped DLL 6 IoCs

pid	Process
2524	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe
1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp
1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp
1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp
1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp
1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.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	flow	ioc	pid	Process
Destination IP	2	45.155.250.90	2996	disksettings.exe

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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	disksettings.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	disksettings.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 1736	2524	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe	30
PID 2524 wrote to memory of 1736	2524	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe	30
PID 2524 wrote to memory of 1736	2524	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe	30
PID 2524 wrote to memory of 1736	2524	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe	30
PID 2524 wrote to memory of 1736	2524	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe	30
PID 2524 wrote to memory of 1736	2524	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe	30
PID 2524 wrote to memory of 1736	2524	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe	30
PID 1736 wrote to memory of 2892	1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp	31
PID 1736 wrote to memory of 2892	1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp	31
PID 1736 wrote to memory of 2892	1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp	31
PID 1736 wrote to memory of 2892	1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp	31
PID 1736 wrote to memory of 2996	1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp	32
PID 1736 wrote to memory of 2996	1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp	32
PID 1736 wrote to memory of 2996	1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp	32
PID 1736 wrote to memory of 2996	1736	1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp	32

C:\Users\Admin\AppData\Local\Temp\1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe
"C:\Users\Admin\AppData\Local\Temp\1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\AppData\Local\Temp\is-NDN8N.tmp\1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NDN8N.tmp\1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp" /SL5="$5014E,4096824,54272,C:\Users\Admin\AppData\Local\Temp\1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1736
- - C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe
    "C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2892
- - C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe
    "C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:2996

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Disk Settings\disksettings.exe

Filesize
2.4MB

MD5
43d5944b57334d4687e6f1bfbe532dc4

SHA1
34552ecc7ca9415aadd48b34a93b047c4321f9fe

SHA256
4ed95acd510f9b8b92e628a079c754ab51a155824d676e9fe57d0ccd69a13e7c

SHA512
12a924ceabe37284edc9d102b496f7712da09fa8e7ba154bf5cfacff6c0d3d2c708fb0fa2e68ff74ba8a0096dd673272ddd006c49283557d2f882e59cdd33570

Download Submit
\Users\Admin\AppData\Local\Temp\is-M2O0D.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-M2O0D.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
\Users\Admin\AppData\Local\Temp\is-M2O0D.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-NDN8N.tmp\1bb97aa3463c4b741ab5d636af84f14ee885d617995af9992f7c50eb5a6e0f1e.tmp

Filesize
680KB

MD5
dd138912c741cabf0c299654773876d1

SHA1
a3b5d44d1b75d9b78fdcacb812afa6d001f2ee8c

SHA256
bd9536a1d39ba785979bc9c0739f717e399a7feca0f13d03ea05035b799c789b

SHA512
76c2756a1c14b610070061637236d3c148f8c926d406b0145ab1f082456138e3a30eaf7cf67f79b8511d234d7b2a191ea99b498d4f06482584eb35a881501895

Download Submit
memory/1736-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1736-46-0x00000000034C0000-0x0000000003727000-memory.dmp

Filesize
2.4MB

Download
memory/1736-57-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1736-58-0x00000000034C0000-0x0000000003727000-memory.dmp

Filesize
2.4MB

Download
memory/2524-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2524-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2524-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2892-48-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2892-49-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2892-53-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-61-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-84-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-62-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-65-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-68-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-71-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-74-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-77-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-78-0x0000000002600000-0x00000000026A2000-memory.dmp

Filesize
648KB

Download
memory/2996-55-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-87-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-90-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-93-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-96-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-99-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-103-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2996-106-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing