socks5systemz | e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62

General

Target

e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.exe
Size

4.3MB
MD5

e921d7523cdb00066a07807fc7669b68
SHA1

0284eeb47246d1fc3da6c894f6b0c42c892cc008
SHA256

e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62
SHA512

eb9dacf25cca8c049c82c9a4a08cb86089eec3ccc4fdaf2db58422102c3e7dcd618d7cd4d7ff55934bce6b7bcb90822f25214878c980c140e216c27c60286bf8
SSDEEP

98304:C8if8YszyevO+xt2xHz2hZhHYs7yTyPCTsHg4cbQxZO:K8YszyevFSSZh4F2CAHgrbQzO

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

dtirept.info

http://dtirept.info/search/?q=67e28dd86e5ef12f1358fa4b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608afd13c8e692923b

http://dtirept.info/search/?q=67e28dd86e5ef12f1358fa4b7c27d78406abdd88be4b12eab517aa5c96bd86eb91854d865a8bbc896c58e713bc90c91b36b5281fc235a925ed3e51d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7eb979833c4689e16

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1932-75-0x0000000000870000-0x0000000000912000-memory.dmp	family_socks5systemz
behavioral2/memory/1932-100-0x0000000000870000-0x0000000000912000-memory.dmp	family_socks5systemz
behavioral2/memory/1932-99-0x0000000000870000-0x0000000000912000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp
4948	mp3tagfreeedition.exe
1932	mp3tagfreeedition.exe

Loads dropped DLL 3 IoCs

pid	Process
3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp
3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp
3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.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	42	91.211.247.248	1932	mp3tagfreeedition.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	mp3tagfreeedition.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mp3tagfreeedition.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 3332	1756	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.exe	85
PID 1756 wrote to memory of 3332	1756	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.exe	85
PID 1756 wrote to memory of 3332	1756	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.exe	85
PID 3332 wrote to memory of 4948	3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp	89
PID 3332 wrote to memory of 4948	3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp	89
PID 3332 wrote to memory of 4948	3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp	89
PID 3332 wrote to memory of 1932	3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp	90
PID 3332 wrote to memory of 1932	3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp	90
PID 3332 wrote to memory of 1932	3332	e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp	90

C:\Users\Admin\AppData\Local\Temp\e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.exe
"C:\Users\Admin\AppData\Local\Temp\e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\is-48PUG.tmp\e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-48PUG.tmp\e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp" /SL5="$1202C4,4143870,54272,C:\Users\Admin\AppData\Local\Temp\e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3332
- - 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
    - System Location Discovery: System Language Discovery
    PID:4948
- - 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
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:1932

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

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Downloads

C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe

Filesize
2.2MB

MD5
e908cead3e79f5b53fe945cddd35a89b

SHA1
bd89cc3d2381b20c551ad3052de0122b0236f81a

SHA256
b23c90ae6994518ed8a425f2996f6d094d88857ff1ae1393fad865e5150a5ed1

SHA512
9576c3d5d54c85cd29efbca535d65c61a3030d2e3de05bcf6faf328140140a141b1681d181ee2937cc354f2b3b502089caece66bf44f3e9e2b6d8b8d9057c08c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-48PUG.tmp\e3a7940c60cc444eac152bf73714078aebc1c9e322f30a1dc83e3eb5d1c8be62.tmp

Filesize
680KB

MD5
7e2b6188f45f7c230e79f54a62bada24

SHA1
3ad24a92812d47b445b747b465d7e2ba6abf3b45

SHA256
74357eb0e5f0c66b3d9b6d210ef6e8c670c6ed3a49b9168068e152977d488b68

SHA512
ea3d1aa0a92f82cd769fdc68317bce18cf505e31b45388cfb931f77f1e831c35600b107c5bcd5b42ba756d28bc9a175770efb5734c00d1bbc7201e92bbf0be6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-EGAH3.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-EGAH3.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/1756-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1756-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1756-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1932-98-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-83-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-119-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-116-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-54-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-113-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-110-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-58-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-59-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-62-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-65-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-68-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-71-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-76-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-75-0x0000000000870000-0x0000000000912000-memory.dmp

Filesize
648KB

Download
memory/1932-107-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-86-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-89-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-92-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-95-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-104-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/1932-100-0x0000000000870000-0x0000000000912000-memory.dmp

Filesize
648KB

Download
memory/1932-99-0x0000000000870000-0x0000000000912000-memory.dmp

Filesize
648KB

Download
memory/3332-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3332-55-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4948-46-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/4948-45-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/4948-51-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download
memory/4948-49-0x0000000000400000-0x0000000000633000-memory.dmp

Filesize
2.2MB

Download

Analysis

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