socks5systemz | b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84

General

Target

b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.exe
Size

6.1MB
MD5

feed6d5c3888b1d229996b01da0ea46c
SHA1

94e0cc3825e10eed3d791119b66967da0a6dbaf4
SHA256

b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84
SHA512

a92e3f8f45617e441d5b96d6f0fd0f5b56e49bfa4e2498ee6f21888de15e0ff97db817ac88aba21c604098621abf2007a21470de7a292dfefa6eeaad12d20bc1
SSDEEP

98304:memw9r6XG035iGJiSwp/JRqCsTCB6Vp20HiPt7/WT5ZNlsGCR8cz/dMSm2L4YofV:j92diC8ym6pBCB/WT535CRjyp2cNfzzd

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/3320-92-0x0000000002640000-0x00000000026E2000-memory.dmp	family_socks5systemz
behavioral1/memory/3320-116-0x0000000002640000-0x00000000026E2000-memory.dmp	family_socks5systemz
behavioral1/memory/3320-115-0x0000000002640000-0x00000000026E2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp
748	ringtonemakerfe.exe
3320	ringtonemakerfe.exe

Loads dropped DLL 3 IoCs

pid	Process
1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp
1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp
1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.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	152.89.198.214

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
1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 1280	2848	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.exe	81
PID 2848 wrote to memory of 1280	2848	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.exe	81
PID 2848 wrote to memory of 1280	2848	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.exe	81
PID 1280 wrote to memory of 748	1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp	83
PID 1280 wrote to memory of 748	1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp	83
PID 1280 wrote to memory of 748	1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp	83
PID 1280 wrote to memory of 3320	1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp	85
PID 1280 wrote to memory of 3320	1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp	85
PID 1280 wrote to memory of 3320	1280	b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp	85

C:\Users\Admin\AppData\Local\Temp\b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.exe
"C:\Users\Admin\AppData\Local\Temp\b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\is-6V3ML.tmp\b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-6V3ML.tmp\b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp" /SL5="$50218,6142001,54272,C:\Users\Admin\AppData\Local\Temp\b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Users\Admin\AppData\Local\Ringtone Maker FE\ringtonemakerfe.exe
    "C:\Users\Admin\AppData\Local\Ringtone Maker FE\ringtonemakerfe.exe" -i
    3⤵
    - Executes dropped EXE
    PID:748
- - C:\Users\Admin\AppData\Local\Ringtone Maker FE\ringtonemakerfe.exe
    "C:\Users\Admin\AppData\Local\Ringtone Maker FE\ringtonemakerfe.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3320

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\Ringtone Maker FE\ringtonemakerfe.exe

Filesize
3.6MB

MD5
579e32cd737d8c7ea02e3dee4ca8b19a

SHA1
cd2053543b858f9f925a5b2c5afbba5a8d79a359

SHA256
d681c2e423b192a54b8a04a4fe457716ce6adb75f8bf4a934a61a0bcbc4ff806

SHA512
7532fd306ced019e7eb776818d5703726c53d3af4bbb59e4d4047d62d1b2bbbad48e5cd3af324552925fa3dbe2ff996e4ec54a2203b735b7d661831641d5fee4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6V3ML.tmp\b96798ba6c4b259c408f85d6a1767bc1de685ae095c16cc85f03ae8d1ad0bc84.tmp

Filesize
680KB

MD5
b7289eddee858433e99222c056f54576

SHA1
4d972cde373fcf8df259be1b5fcafe44357ea64b

SHA256
2bb15c78f05c5000fab1bded860ca7c0059345c5d29fd542210172cada980478

SHA512
38eb10b404204958e1dc593118ef186feb647309d84f6396d533818b725ab434173101bc29f11b076ef5c23e406209be8c2be968cc20d7922ae9588b2b9ce22a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JM01S.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JM01S.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/748-69-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/748-65-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/748-66-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/748-71-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/1280-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1280-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2848-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2848-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2848-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3320-77-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-102-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-80-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-83-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-86-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-89-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-92-0x0000000002640000-0x00000000026E2000-memory.dmp

Filesize
648KB

Download
memory/3320-96-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-99-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-74-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-105-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-108-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-111-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-114-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-116-0x0000000002640000-0x00000000026E2000-memory.dmp

Filesize
648KB

Download
memory/3320-115-0x0000000002640000-0x00000000026E2000-memory.dmp

Filesize
648KB

Download
memory/3320-120-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download
memory/3320-123-0x0000000000400000-0x0000000000791000-memory.dmp

Filesize
3.6MB

Download

Analysis

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