stormkitty | 1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803

Analysis

max time kernel
138s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 15:33

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General

Target

1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe
Size

1.3MB
MD5

a4c1ea4b6e69e69462efa7659ff6f48c
SHA1

cf71024bf28f10f63bf7cd27dba64d406c2ed97c
SHA256

1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803
SHA512

be527013711f308bb9a0deb65b11066570e86cee896041d55556dc8566a2476bc96ab089ca155030397d95fd8d358170bc2f5b0bf97efd579dd464b1ca803507
SSDEEP

24576:/84F/cDq4sTq+gdI2W+7nMS9LJf4bcwGCYVgERFh7IfEx0ECnaf:kEcyjgmkMS9L2cFCER0f+0ECna

Score

10^/10

stormkitty xworm discovery rat stealer trojan

Malware Config

Extracted

Family

xworm

Version

5.0

127.0.0.1:8895

162.230.48.189:8895

Mutex

ZRGtN7NDh24Vx89x

Attributes

install_file
USB.exe

aes.plain

Signatures

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral2/memory/4224-1101-0x0000000005380000-0x000000000538E000-memory.dmp	disable_win_def

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4224-1095-0x00000000001A0000-0x00000000001B0000-memory.dmp	family_xworm

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/4224-1102-0x0000000005F70000-0x000000000608E000-memory.dmp	family_stormkitty

Stormkitty family
stormkitty

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 4564 created 3412	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	56

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ReturnType.vbs	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4564 set thread context of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3376	4224	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 2 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	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe
Token: SeDebugPrivilege	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe
Token: SeDebugPrivilege	4224	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86
PID 4564 wrote to memory of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86
PID 4564 wrote to memory of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86
PID 4564 wrote to memory of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86
PID 4564 wrote to memory of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86
PID 4564 wrote to memory of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86
PID 4564 wrote to memory of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86
PID 4564 wrote to memory of 4224	4564	1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3412
- C:\Users\Admin\AppData\Local\Temp\1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe
  "C:\Users\Admin\AppData\Local\Temp\1abb33b881408b0341a530de14b0afdb88b96ffcd0254dd397848db3e6508803.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4564
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4224
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4224 -s 2352
    3⤵
    - Program crash
    PID:3376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4224 -ip 4224
1⤵
PID:4264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4224-1094-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4224-1096-0x0000000004980000-0x0000000004A1C000-memory.dmp

Filesize
624KB

Download
memory/4224-1095-0x00000000001A0000-0x00000000001B0000-memory.dmp

Filesize
64KB

Download
memory/4224-1097-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4224-1098-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4224-1143-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4224-1104-0x0000000006250000-0x000000000629C000-memory.dmp

Filesize
304KB

Download
memory/4224-1103-0x0000000006A70000-0x0000000006DC4000-memory.dmp

Filesize
3.3MB

Download
memory/4224-1102-0x0000000005F70000-0x000000000608E000-memory.dmp

Filesize
1.1MB

Download
memory/4224-1101-0x0000000005380000-0x000000000538E000-memory.dmp

Filesize
56KB

Download
memory/4224-1100-0x0000000005390000-0x00000000053F6000-memory.dmp

Filesize
408KB

Download
memory/4224-1099-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4564-47-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-21-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-29-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-27-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-25-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-55-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-69-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-67-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-65-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-63-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-61-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-59-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-57-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-53-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-51-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-49-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-35-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-45-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-43-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-41-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-39-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-37-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-24-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-33-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-19-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-17-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-13-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-12-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-31-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-15-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-7-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-6-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-1080-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4564-1081-0x00000000050D0000-0x000000000512A000-memory.dmp

Filesize
360KB

Download
memory/4564-1082-0x0000000005130000-0x000000000517C000-memory.dmp

Filesize
304KB

Download
memory/4564-1086-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4564-1087-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4564-1089-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4564-9-0x0000000004E10000-0x0000000004EF2000-memory.dmp

Filesize
904KB

Download
memory/4564-5-0x0000000004FE0000-0x0000000005072000-memory.dmp

Filesize
584KB

Download
memory/4564-4-0x00000000054B0000-0x0000000005A54000-memory.dmp

Filesize
5.6MB

Download
memory/4564-3-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download
memory/4564-2-0x0000000004E10000-0x0000000004EF8000-memory.dmp

Filesize
928KB

Download
memory/4564-1-0x00000000002F0000-0x0000000000438000-memory.dmp

Filesize
1.3MB

Download
memory/4564-0-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/4564-1088-0x00000000051D0000-0x0000000005224000-memory.dmp

Filesize
336KB

Download
memory/4564-1093-0x0000000074950000-0x0000000075100000-memory.dmp

Filesize
7.7MB

Download