socks5systemz | a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a

General

Target

a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe
Size

4.1MB
MD5

a2493b6441ad2729ff54f0e84e20a3c0
SHA1

0bdf7abd25e68a3aa593e06b75c64eceb5b0ab57
SHA256

a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a
SHA512

082e4891c7bc05b2f2033a9f8758adf393012b536ef8c39e02357f972f36e3ab9fd562d08100a43a276a3b3c946f83d975199bc64387410e36883ff62742e1a9
SSDEEP

98304:C/QWw5ucOjLT3cPHkOPbm4b93PmPbuxQxE:yZ4urv7cPkOPbmk3PmPbuxQG

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

dibiulu.info

http://dibiulu.info/search/?q=67e28dd86e0ca029110da84e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923f658cf711c9e696

http://dibiulu.info/search/?q=67e28dd86e0ca029110da84e7c27d78406abdd88be4b12eab517aa5c96bd86eb96864b815a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff815c2ed9d9a32c46c

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2596-74-0x0000000002350000-0x00000000023F2000-memory.dmp	family_socks5systemz
behavioral1/memory/2596-97-0x0000000002350000-0x00000000023F2000-memory.dmp	family_socks5systemz
behavioral1/memory/2596-96-0x0000000002350000-0x00000000023F2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
2744	soundvolume.exe
2596	soundvolume.exe

Loads dropped DLL 5 IoCs

pid	Process
1600	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe
2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.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	2596	soundvolume.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	soundvolume.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundvolume.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2672	1600	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	30
PID 1600 wrote to memory of 2672	1600	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	30
PID 1600 wrote to memory of 2672	1600	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	30
PID 1600 wrote to memory of 2672	1600	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	30
PID 1600 wrote to memory of 2672	1600	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	30
PID 1600 wrote to memory of 2672	1600	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	30
PID 1600 wrote to memory of 2672	1600	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	30
PID 2672 wrote to memory of 2744	2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	31
PID 2672 wrote to memory of 2744	2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	31
PID 2672 wrote to memory of 2744	2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	31
PID 2672 wrote to memory of 2744	2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	31
PID 2672 wrote to memory of 2596	2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	32
PID 2672 wrote to memory of 2596	2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	32
PID 2672 wrote to memory of 2596	2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	32
PID 2672 wrote to memory of 2596	2672	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	32

C:\Users\Admin\AppData\Local\Temp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe
"C:\Users\Admin\AppData\Local\Temp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\is-30ADM.tmp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-30ADM.tmp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp" /SL5="$30150,3905429,54272,C:\Users\Admin\AppData\Local\Temp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe
    "C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2744
- - C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe
    "C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:2596

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\Sound Volume\soundvolume.exe

Filesize
2.9MB

MD5
58d3f602a0c06e6a6c3f176ea87aeed1

SHA1
aa8d28ad37719c08edae2863d839d1083d18fc27

SHA256
293687c5d6a278aae44595cf5752ccd057940e67e6b3630c2880eab5ab76ee36

SHA512
4e71162c19d77fbf2198038e66150692ccf3d3a99239cd6a2ada9b437181d2d1331169f3731f77200c99ca1c87bdbc43f815bf14f14f6e544d0d674c4cd1dd2a

Download Submit
\Users\Admin\AppData\Local\Temp\is-30ADM.tmp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp

Filesize
680KB

MD5
6e8a6870c7b7cca7857274c12319be79

SHA1
670cb59240dcf402572bac9afa413530f4126248

SHA256
18b2e6e055099ecdee8aa2cdca0d19d18bb3bb0f6db8725cf0fc0d39f95813fc

SHA512
8f4dd62e1b8be2dd4b3178f7267c7898c26e2466826c93eaff817fc0b08d926671e2e620fb341516d72b90b2519710e8b6354afccf2c777d7148cae8e521a037

Download Submit
\Users\Admin\AppData\Local\Temp\is-SC5C2.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-SC5C2.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1600-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1600-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1600-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2596-95-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-80-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-116-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-52-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-113-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-110-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-107-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-57-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-58-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-61-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-64-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-67-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-70-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-73-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-74-0x0000000002350000-0x00000000023F2000-memory.dmp

Filesize
648KB

Download
memory/2596-104-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-83-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-86-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-89-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-92-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-101-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2596-97-0x0000000002350000-0x00000000023F2000-memory.dmp

Filesize
648KB

Download
memory/2596-96-0x0000000002350000-0x00000000023F2000-memory.dmp

Filesize
648KB

Download
memory/2672-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2672-44-0x0000000003C00000-0x0000000003EE0000-memory.dmp

Filesize
2.9MB

Download
memory/2672-54-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2744-45-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2744-50-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/2744-46-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download

Analysis

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