socks5systemz | 8db66b0d87316c8c483597cb7866f77be2097400c792f2544350fe746f98572e

General

Target

qNwUDBzN8dnHz2YVxcnehO9i.exe
Size

4.0MB
MD5

4a223a34fb037e7d5944697dcc0c5717
SHA1

745641d014040bf52eaf997e1696c01da320d283
SHA256

8db66b0d87316c8c483597cb7866f77be2097400c792f2544350fe746f98572e
SHA512

5cbd945bfc95e0c7db772dce48b5e7a7e5f3f6c0d23f4396349d9bdaa0198bc97636227e6a38bb9744af79698e8a8290e11b28774a8078497456c33df43068b1
SSDEEP

98304:NymRZRydcjVR+eu9Jrcu+ZwjFp6IGai+zTlDGdX:XMcdunrcu+Zw3lBGV

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2160-83-0x0000000002680000-0x0000000002722000-memory.dmp	family_socks5systemz
behavioral2/memory/2160-106-0x0000000002680000-0x0000000002722000-memory.dmp	family_socks5systemz
behavioral2/memory/2160-107-0x0000000002680000-0x0000000002722000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp
3048	xulplayer32_64.exe
2160	xulplayer32_64.exe

Loads dropped DLL 3 IoCs

pid	Process
2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp
2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp
2336	qNwUDBzN8dnHz2YVxcnehO9i.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	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

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	qNwUDBzN8dnHz2YVxcnehO9i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qNwUDBzN8dnHz2YVxcnehO9i.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xulplayer32_64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xulplayer32_64.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp
2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 2336	4024	qNwUDBzN8dnHz2YVxcnehO9i.exe	84
PID 4024 wrote to memory of 2336	4024	qNwUDBzN8dnHz2YVxcnehO9i.exe	84
PID 4024 wrote to memory of 2336	4024	qNwUDBzN8dnHz2YVxcnehO9i.exe	84
PID 2336 wrote to memory of 3048	2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp	86
PID 2336 wrote to memory of 3048	2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp	86
PID 2336 wrote to memory of 3048	2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp	86
PID 2336 wrote to memory of 2160	2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp	87
PID 2336 wrote to memory of 2160	2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp	87
PID 2336 wrote to memory of 2160	2336	qNwUDBzN8dnHz2YVxcnehO9i.tmp	87

C:\Users\Admin\AppData\Local\Temp\qNwUDBzN8dnHz2YVxcnehO9i.exe
"C:\Users\Admin\AppData\Local\Temp\qNwUDBzN8dnHz2YVxcnehO9i.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Users\Admin\AppData\Local\Temp\is-MA0E7.tmp\qNwUDBzN8dnHz2YVxcnehO9i.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-MA0E7.tmp\qNwUDBzN8dnHz2YVxcnehO9i.tmp" /SL5="$D0046,3900869,54272,C:\Users\Admin\AppData\Local\Temp\qNwUDBzN8dnHz2YVxcnehO9i.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
    "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3048
- - C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
    "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -s
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2160

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-HB8T1.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-HB8T1.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MA0E7.tmp\qNwUDBzN8dnHz2YVxcnehO9i.tmp

Filesize
692KB

MD5
00f15ee57af82fc40ac1ec609d1810a4

SHA1
6abfae4f73ade5af54d267c02389daf49abd6a51

SHA256
20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

SHA512
f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

Download Submit
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe

Filesize
3.3MB

MD5
59c30c6ffdfd385dbe9b0f999bcd17a4

SHA1
3e87cd61ac869ff1a72f6f1d8d8dcf577d7454dd

SHA256
cd0ebd138ff66b54fd739b724d51a32727f69ed6f75730138e028516fb325f35

SHA512
34c3eaba4b1952297263c48b5097527f911551c61cd05c6f215d54a42e0cdd3b1a002723d501d269f56ba3991cf3016c0ae5a6d30d081dab41d195bd6cc4862d

Download Submit
memory/2160-93-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-99-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-114-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-111-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-107-0x0000000002680000-0x0000000002722000-memory.dmp

Filesize
648KB

Download
memory/2160-106-0x0000000002680000-0x0000000002722000-memory.dmp

Filesize
648KB

Download
memory/2160-65-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-105-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-102-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-68-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-71-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-74-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-77-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-80-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-83-0x0000000002680000-0x0000000002722000-memory.dmp

Filesize
648KB

Download
memory/2160-85-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-90-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2160-96-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/2336-18-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2336-67-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/3048-62-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/3048-59-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/3048-58-0x0000000000400000-0x0000000000748000-memory.dmp

Filesize
3.3MB

Download
memory/4024-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4024-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4024-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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