socks5systemz | 211c254f45f6fb09fe27227a46fe7f4cccfb3468362acc250fa2db0197d60886

General

Target

575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe
Size

4.0MB
MD5

575b492dde6a22eb32d5bb2c146054a0
SHA1

b508611429e8e63a87c6e47459ee72917a82a091
SHA256

211c254f45f6fb09fe27227a46fe7f4cccfb3468362acc250fa2db0197d60886
SHA512

140d8827182fa99d5545995003a09322e10da4a4f64616c231eb070fc982b0b64c99708492a2e25fa9cd172791d80e300aa2f986e3804728553badb633e694e6
SSDEEP

98304:AdL9xWLs1Esvx3VRy2XOwnqoQyVHXoblgL74+7e:AzwM5S2X9qM3oqLU+7e

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

51.159.66.125

217.23.6.51

151.80.38.159

217.23.9.168

37.187.122.227

Attributes

rc4_key
heyfg645fdhwi

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2084-99-0x00000000006F0000-0x000000000079A000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3220	is-J3PRN.tmp
1392	ZxingPDF.exe
2084	ZxingPDF.exe

Loads dropped DLL 1 IoCs

pid	Process
3220	is-J3PRN.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	51.159.66.125

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

Drops file in Program Files directory 28 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-DE007.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-77P0R.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Plugins\is-DFUP2.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Plugins\is-OMS10.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\is-GU7TJ.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-FJ1AU.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-BKU9T.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-27UAN.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-OBO3N.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Plugins\is-2R431.tmp	is-J3PRN.tmp
File opened for modification	C:\Program Files (x86)\ZxingPDF\unins000.dat	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-BG2C5.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-QNBM2.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Online\is-PUP6F.tmp	is-J3PRN.tmp
File opened for modification	C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-M1BHT.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-AP1RP.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-ILMBI.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-18T1L.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\unins000.dat	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-F5723.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-D0OVF.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-E453T.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\is-F7H6L.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Plugins\is-L3HNG.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Lang\is-7VD5N.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Online\is-5V07J.tmp	is-J3PRN.tmp
File created	C:\Program Files (x86)\ZxingPDF\Help\is-H3OIF.tmp	is-J3PRN.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 3220	4844	575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe	91
PID 4844 wrote to memory of 3220	4844	575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe	91
PID 4844 wrote to memory of 3220	4844	575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe	91
PID 3220 wrote to memory of 2348	3220	is-J3PRN.tmp	92
PID 3220 wrote to memory of 2348	3220	is-J3PRN.tmp	92
PID 3220 wrote to memory of 2348	3220	is-J3PRN.tmp	92
PID 3220 wrote to memory of 1392	3220	is-J3PRN.tmp	93
PID 3220 wrote to memory of 1392	3220	is-J3PRN.tmp	93
PID 3220 wrote to memory of 1392	3220	is-J3PRN.tmp	93
PID 3220 wrote to memory of 2084	3220	is-J3PRN.tmp	95
PID 3220 wrote to memory of 2084	3220	is-J3PRN.tmp	95
PID 3220 wrote to memory of 2084	3220	is-J3PRN.tmp	95

C:\Users\Admin\AppData\Local\Temp\575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Users\Admin\AppData\Local\Temp\is-N2H02.tmp\is-J3PRN.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-N2H02.tmp\is-J3PRN.tmp" /SL4 $D004C "C:\Users\Admin\AppData\Local\Temp\575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe" 3876134 242176
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3220
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query
    3⤵
    PID:2348
- - C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe
    "C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1392
- - C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe
    "C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2084

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
1⤵
PID:1796

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:\Program Files (x86)\ZxingPDF\ZxingPDF.exe

Filesize
2.0MB

MD5
330c3f73c995dbc18c9211269fc579ee

SHA1
32596c55cfc47c80a8c21dbb28538836cecec40d

SHA256
c558e1a93895386068de911f2f92b9e7680b7e3b3649894ccae8f7b12d56849d

SHA512
13e095500ad5a57637a7d53ca88deae73921388a0959298fbb8a127f08bec7b108d00405063e6138d1b572b19da9a16ee48564a6ed43880f2a83bdb5428756ca

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5BKSC.tmp\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-N2H02.tmp\is-J3PRN.tmp

Filesize
643KB

MD5
a991510c12f20ccf8a5231a32a7958c3

SHA1
122724d1a4fdea39af3aa427e4941158d7e91dfa

SHA256
0c3ab280e156e9ff6a325267bc5d721f71dcb12490a53a03a033d932272f9198

SHA512
8f387a6189f6fa51f84004706589ed1706dfd08dfc38c1f8ce3ce010f37efac085fd241396ab69bc25c86174a4637492163bf3cb26f88639551dc9fa0c52eafa

Download Submit
memory/1392-78-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/1392-77-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/1392-75-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/1392-73-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-95-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-99-0x00000000006F0000-0x000000000079A000-memory.dmp

Filesize
680KB

Download
memory/2084-118-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-115-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-112-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-109-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-106-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-83-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-86-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-89-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-92-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-103-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/2084-98-0x0000000000400000-0x0000000000609000-memory.dmp

Filesize
2.0MB

Download
memory/3220-82-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/3220-8-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/3220-56-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/4844-55-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/4844-0-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/4844-3-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/4844-2-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download

Analysis

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