socks5systemz | eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50

General

Target

eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.exe
Size

4.4MB
MD5

4496e25f3a901c91b874c5a7ef38fa4c
SHA1

cd063de83ae85b354e30b413dbd047ad9eeea168
SHA256

eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50
SHA512

a7ce54bcbf060029273dbd08c34b509fc4b5b4c403acc62121a6e2ac3383ddcac60b3a1a79dbee1803603a68952064795d3493947eab7b4908f417f11e14ce3b
SSDEEP

98304:NW3bTee0iF6T7FQxj+dgjjTgoBuzLyHTMntHFjFHDHMBjZdJ:GbT8i6FQxjoOjUmuzQT4l92jZD

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/4332-84-0x0000000000B40000-0x0000000000BE2000-memory.dmp	family_socks5systemz
behavioral1/memory/4332-107-0x0000000000B40000-0x0000000000BE2000-memory.dmp	family_socks5systemz
behavioral1/memory/4332-108-0x0000000000B40000-0x0000000000BE2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp
1752	avicodec32_64.exe
4332	avicodec32_64.exe

Loads dropped DLL 3 IoCs

pid	Process
536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp
536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp
536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.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	91.211.247.248

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	avicodec32_64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	avicodec32_64.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp
536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 536	1856	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.exe	86
PID 1856 wrote to memory of 536	1856	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.exe	86
PID 1856 wrote to memory of 536	1856	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.exe	86
PID 536 wrote to memory of 1752	536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp	90
PID 536 wrote to memory of 1752	536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp	90
PID 536 wrote to memory of 1752	536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp	90
PID 536 wrote to memory of 4332	536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp	91
PID 536 wrote to memory of 4332	536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp	91
PID 536 wrote to memory of 4332	536	eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp	91

C:\Users\Admin\AppData\Local\Temp\eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.exe
"C:\Users\Admin\AppData\Local\Temp\eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Local\Temp\is-41QJN.tmp\eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-41QJN.tmp\eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp" /SL5="$80052,4377396,54272,C:\Users\Admin\AppData\Local\Temp\eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.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:536
- - C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
    "C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1752
- - C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
    "C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4332

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\AVI Codec\avicodec32_64.exe

Filesize
4.1MB

MD5
11487bcbd676fc23a176d15cdc5dbd07

SHA1
38c6440e4f9bbd4cb388ddfed70ff4bec2ac8eb9

SHA256
477ce71049f9fbe5d96a6f5f01cd5b75ab98debf8222b5dcf5df610058f821bf

SHA512
1db5227ff6ac0ba8329f4529bc2d161673581206ad370da387b5cbbca755a4a2819f5b01ba08b348c8e4491e6a36dbf6b13865a41498c23170f1a9d7683cd50e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-41QJN.tmp\eee46402524c8dbd931bddb821397a185c59f58c784c1aaaac54800b34a80e50.tmp

Filesize
692KB

MD5
85fc5b8836d8625fbfa40a092386e645

SHA1
a90bb83f5d8d024bb357a44682267a50406071d6

SHA256
6dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950

SHA512
c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VUV2O.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VUV2O.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/536-13-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/536-68-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1752-57-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/1752-59-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/1752-63-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/1752-61-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/1856-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1856-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1856-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4332-69-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-94-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-72-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-75-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-78-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-81-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-84-0x0000000000B40000-0x0000000000BE2000-memory.dmp

Filesize
648KB

Download
memory/4332-86-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-91-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-66-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-97-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-100-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-103-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-106-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-107-0x0000000000B40000-0x0000000000BE2000-memory.dmp

Filesize
648KB

Download
memory/4332-108-0x0000000000B40000-0x0000000000BE2000-memory.dmp

Filesize
648KB

Download
memory/4332-112-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download
memory/4332-115-0x0000000000400000-0x0000000000813000-memory.dmp

Filesize
4.1MB

Download

Analysis

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