socks5systemz | c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31

General

Target

c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe
Size

4.8MB
MD5

29ac01cceaa586394ef759cc09ac2d8f
SHA1

095374267db2ec9630cdc9ceac36f64c0342d8f4
SHA256

c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31
SHA512

956b9e211b8eb6accdc88f4e136d76806d98956930d14fd23f7275e6ab12f53eda74efbf2e9977c91bcdfd6bc7a951b274a28cce7f513e682fda10d27c9d4296
SSDEEP

98304:+/mjWrf15MeBRNXFzY5AwvsOXKSLUS+DbuEhFEmfv9ELQC:FWrt5MiYSwvs/SLUmEsmfv90

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bvzbxfj.com

http://bvzbxfj.com/search/?q=67e28dd83a5ca421460bad497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a371ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923f658cf714c3e797

http://bvzbxfj.com/search/?q=67e28dd83a5ca421460bad497c27d78406abdd88be4b12eab517aa5c96bd86ef97834c875a8bbc896c58e713bc90c91936b5281fc235a925ed3e00d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff815c2ed9d9f38c56d

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1908-100-0x0000000002510000-0x00000000025B2000-memory.dmp	family_socks5systemz
behavioral1/memory/1908-128-0x0000000002510000-0x00000000025B2000-memory.dmp	family_socks5systemz
behavioral1/memory/1908-129-0x0000000002510000-0x00000000025B2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp
2672	keratodjprof.exe
1908	keratodjprof.exe

Loads dropped DLL 6 IoCs

pid	Process
764	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe
2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp
2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp
2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp
2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp
2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	flow	ioc	pid	Process
Destination IP	3	152.89.198.214	1908	keratodjprof.exe
Destination IP	6	91.211.247.248	1908	keratodjprof.exe
Destination IP	2	141.98.234.31	1908	keratodjprof.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

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	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	keratodjprof.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	keratodjprof.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 2760	764	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe	31
PID 764 wrote to memory of 2760	764	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe	31
PID 764 wrote to memory of 2760	764	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe	31
PID 764 wrote to memory of 2760	764	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe	31
PID 764 wrote to memory of 2760	764	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe	31
PID 764 wrote to memory of 2760	764	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe	31
PID 764 wrote to memory of 2760	764	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe	31
PID 2760 wrote to memory of 2672	2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp	32
PID 2760 wrote to memory of 2672	2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp	32
PID 2760 wrote to memory of 2672	2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp	32
PID 2760 wrote to memory of 2672	2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp	32
PID 2760 wrote to memory of 1908	2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp	33
PID 2760 wrote to memory of 1908	2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp	33
PID 2760 wrote to memory of 1908	2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp	33
PID 2760 wrote to memory of 1908	2760	c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp	33

C:\Users\Admin\AppData\Local\Temp\c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe
"C:\Users\Admin\AppData\Local\Temp\c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:764
- C:\Users\Admin\AppData\Local\Temp\is-NF161.tmp\c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NF161.tmp\c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp" /SL5="$50150,4789018,54272,C:\Users\Admin\AppData\Local\Temp\c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe
    "C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2672
- - C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe
    "C:\Users\Admin\AppData\Local\Kerato DJ Prof\keratodjprof.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:1908

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\Kerato DJ Prof\keratodjprof.exe

Filesize
1.9MB

MD5
b67facabf7da66e858b38bebba9c283d

SHA1
975b5b055d118b7d4bacbbb98fc1fed944355bbe

SHA256
4a792ac3ec1c58da1d3e819dde9025d91b7771256fe4f11dec25f1c603e55f11

SHA512
a02c612a848b3a2003e0db4dbc2df3c666b601cf7e7fb2d112787b69b4adc635cd60f0ade3474f40796ef59340ebbbb3323c0c73ed1977fd279e54ed946cc95e

Download Submit
C:\Users\Admin\AppData\Local\Kerato DJ Prof\libeay32.dll

Filesize
1.9MB

MD5
876a839023b8f962a72d295da7495734

SHA1
62a7728679bc18784b1fbf1d013f7cece18cbec9

SHA256
a757d773da406411fb977761f6e56f016d48d224aedaf3d875ed4d4a9ede6158

SHA512
e1b23a2f5ec0100ff874ca075bbd0f90e9065a90fec66861f99df603d7aaa9db8e8ec326710fdc11ad41d01befe4ea3077136127acf613614d0d12ff23bec6c1

Download Submit
\Users\Admin\AppData\Local\Temp\is-7TU26.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-7TU26.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
c948b46ea1eb5757ecf75404571c31ce

SHA1
6665b8d48fea3538c7e043b7ab700778d86307a3

SHA256
3c5b63d61e00f30790c7df0f048473cb04d17e175d8177e86c7cf5062dcaad24

SHA512
6b326b34c8142ef2b75df7f83aed11400a86d19806730bab0515ccfcd6eb2ef71d6db707dbd48d8f1f8ff9e3eb6626af80d38394ebaf2742ef3df0d0ebe4f256

Download Submit
\Users\Admin\AppData\Local\Temp\is-7TU26.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-NF161.tmp\c17e74cb20150f2e5a810112eb1234a1f54523db1080cc4d0652a61a74802f31.tmp

Filesize
696KB

MD5
95a2740ed7e8495d4e520a20175629d0

SHA1
5da0777a4eda539160fd1081b626045abb9089dd

SHA256
bc85d48ba9608273f37a0a7775147d5cd17669949c17a27c833f2e40ba9d5c11

SHA512
7006dc66776392c3abb3ce719028ec239365f2beb29f3ff613b202400673d01c8b41b45d85d3997839977635708d81713f860dde076e7a431498b06d6939fee8

Download Submit
memory/764-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/764-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/764-81-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1908-118-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-121-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-142-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-139-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-136-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-77-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-133-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-129-0x0000000002510000-0x00000000025B2000-memory.dmp

Filesize
648KB

Download
memory/1908-128-0x0000000002510000-0x00000000025B2000-memory.dmp

Filesize
648KB

Download
memory/1908-83-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-84-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-87-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-90-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-93-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-96-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-99-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-100-0x0000000002510000-0x00000000025B2000-memory.dmp

Filesize
648KB

Download
memory/1908-106-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-109-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-112-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-115-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-127-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/1908-124-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2672-69-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2672-74-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2672-72-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2672-68-0x0000000000400000-0x00000000005DD000-memory.dmp

Filesize
1.9MB

Download
memory/2760-8-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/2760-67-0x00000000037B0000-0x000000000398D000-memory.dmp

Filesize
1.9MB

Download
memory/2760-80-0x00000000037B0000-0x000000000398D000-memory.dmp

Filesize
1.9MB

Download
memory/2760-79-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download

Analysis

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