stormkitty | 46e1081372a9209e9bb11225ecfdcd3d3824a51a568c03763e2c689c4ef3928f

General

Target

DiscordMulty/DRouter.exe
Size

1.9MB
MD5

4d978f4a830f374b5867f1ae53b08ffc
SHA1

827b301d630a037a6559acc3b63612fded885767
SHA256

a881c67a5ad97fed46616a1c219a4c70fffcbe3ec1f0c900747e2ba75131b143
SHA512

f9339c421b5a8ee85358d0a4384ef3d203cb68572152f02c9610c4c371091d5c5caed5fde3a3c379ef3feaa2c86cc123e09596fb8862816ea60ae2d78d6a6091
SSDEEP

3072:gq6+ouCpk2mpcWJ0r+QNTBfqcm2GvaDE:gldk1cWQRNTBS

Score

10^/10

stormkitty discovery stealer

Malware Config

Signatures

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

StormKitty payload 1 IoCs

resource	yara_rule
behavioral4/memory/1504-22-0x0000000006F30000-0x0000000006FEE000-memory.dmp	family_stormkitty

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	DRouter.exe

Executes dropped EXE 1 IoCs

pid	Process
4636	ctfmom.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3700 set thread context of 1504	3700	websocket4.pif	93
PID 1504 set thread context of 1960	1504	websocket4.pif	95

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2068	3704	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 6 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	DRouter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	websocket4.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	webhttp.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	websocket4.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ctfmom.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4636	ctfmom.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1960	MSBuild.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 2592	1392	DRouter.exe	84
PID 1392 wrote to memory of 2592	1392	DRouter.exe	84
PID 2592 wrote to memory of 3700	2592	cmd.exe	87
PID 2592 wrote to memory of 3700	2592	cmd.exe	87
PID 2592 wrote to memory of 3700	2592	cmd.exe	87
PID 2592 wrote to memory of 3704	2592	cmd.exe	88
PID 2592 wrote to memory of 3704	2592	cmd.exe	88
PID 2592 wrote to memory of 3704	2592	cmd.exe	88
PID 3700 wrote to memory of 1504	3700	websocket4.pif	93
PID 3700 wrote to memory of 1504	3700	websocket4.pif	93
PID 3700 wrote to memory of 1504	3700	websocket4.pif	93
PID 3700 wrote to memory of 1504	3700	websocket4.pif	93
PID 3700 wrote to memory of 1504	3700	websocket4.pif	93
PID 3700 wrote to memory of 1504	3700	websocket4.pif	93
PID 3700 wrote to memory of 1504	3700	websocket4.pif	93
PID 3700 wrote to memory of 1504	3700	websocket4.pif	93
PID 1504 wrote to memory of 1960	1504	websocket4.pif	95
PID 1504 wrote to memory of 1960	1504	websocket4.pif	95
PID 1504 wrote to memory of 1960	1504	websocket4.pif	95
PID 1504 wrote to memory of 1960	1504	websocket4.pif	95
PID 1504 wrote to memory of 1960	1504	websocket4.pif	95
PID 1504 wrote to memory of 1960	1504	websocket4.pif	95
PID 1504 wrote to memory of 1960	1504	websocket4.pif	95
PID 1504 wrote to memory of 1960	1504	websocket4.pif	95
PID 1504 wrote to memory of 4636	1504	websocket4.pif	96
PID 1504 wrote to memory of 4636	1504	websocket4.pif	96
PID 1504 wrote to memory of 4636	1504	websocket4.pif	96

C:\Users\Admin\AppData\Local\Temp\DiscordMulty\DRouter.exe
"C:\Users\Admin\AppData\Local\Temp\DiscordMulty\DRouter.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\8388.tmp\8389.tmp\838A.bat C:\Users\Admin\AppData\Local\Temp\DiscordMulty\DRouter.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Users\Admin\AppData\Local\Temp\DiscordMulty\lib\websocket4.pif
    lib\websocket4.pif
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3700
  - - C:\Users\Admin\AppData\Local\Temp\DiscordMulty\lib\websocket4.pif
      "{path}"
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1504
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:1960
    - - C:\Users\Admin\AppData\Roaming\Microsoft\ctfmom.exe
        
        "C:\Users\Admin\AppData\Roaming\Microsoft\ctfmom.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: AddClipboardFormatListener
        
        PID:4636
- - C:\Users\Admin\AppData\Local\Temp\DiscordMulty\lib\webhttp.pif
    lib\webhttp.pif
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3704
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 900
      4⤵
      Program crash
      PID:2068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3704 -ip 3704
1⤵
PID:3724

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

2

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\Microsoft\CLR_v4.0_32\UsageLogs\websocket4.pif.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\8388.tmp\8389.tmp\838A.bat

Filesize
60B

MD5
a86dfd2e60123849d7dc67d6d2dc3a95

SHA1
fb87bf06e3d34e2dcaf4c89cf9098a8ce6548460

SHA256
e762f92531bc407f4fc7c443a0474343b8d7669e9756fb4fce50593bd0833d78

SHA512
4c858c8cc23ef46186d9a153603fec3b56501c24a0c77b39f457bf4cd8626cc5f78afc041bd1135f96796c7d130f0c5ae336bc8a35df96cd06135eaa6e20b4af

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\ctfmom.exe

Filesize
42KB

MD5
998d4888b99734c60802f93fb2daf940

SHA1
297a395d096ca67b885134dea1147c270b402c1a

SHA256
d63c4166014d50c6321e82e1c6de7c1a2207b0e09f541d1275d0109aa1d191b5

SHA512
2658aab48807606dc83c4b822438b5454a3df19f4db015d30b8b330baab6218a8a259bb33a2e57398e3c6823059ea49477b4d79df63fe383a9f4725359899190

Download Submit
memory/1504-22-0x0000000006F30000-0x0000000006FEE000-memory.dmp

Filesize
760KB

Download
memory/1504-21-0x0000000005530000-0x0000000005544000-memory.dmp

Filesize
80KB

Download
memory/1504-17-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1960-36-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-38-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-34-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-32-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-39-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-42-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-33-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-44-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-47-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-30-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-45-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1960-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3700-10-0x0000000007790000-0x0000000007798000-memory.dmp

Filesize
32KB

Download
memory/3700-8-0x0000000004DB0000-0x0000000004DBA000-memory.dmp

Filesize
40KB

Download
memory/3700-16-0x000000000A4E0000-0x000000000A5A0000-memory.dmp

Filesize
768KB

Download
memory/3700-15-0x0000000007D60000-0x0000000007E76000-memory.dmp

Filesize
1.1MB

Download
memory/3700-14-0x0000000072EF0000-0x00000000736A0000-memory.dmp

Filesize
7.7MB

Download
memory/3700-13-0x0000000072EFE000-0x0000000072EFF000-memory.dmp

Filesize
4KB

Download
memory/3700-2-0x0000000072EFE000-0x0000000072EFF000-memory.dmp

Filesize
4KB

Download
memory/3700-11-0x0000000007840000-0x00000000078DC000-memory.dmp

Filesize
624KB

Download
memory/3700-9-0x0000000072EF0000-0x00000000736A0000-memory.dmp

Filesize
7.7MB

Download
memory/3700-20-0x0000000072EF0000-0x00000000736A0000-memory.dmp

Filesize
7.7MB

Download
memory/3700-4-0x00000000003B0000-0x00000000004E4000-memory.dmp

Filesize
1.2MB

Download
memory/3700-6-0x0000000005340000-0x00000000058E4000-memory.dmp

Filesize
5.6MB

Download
memory/3704-5-0x0000000005510000-0x00000000055A2000-memory.dmp

Filesize
584KB

Download
memory/3704-7-0x0000000072EF0000-0x00000000736A0000-memory.dmp

Filesize
7.7MB

Download
memory/3704-3-0x0000000000C40000-0x0000000000C5E000-memory.dmp

Filesize
120KB

Download
memory/3704-12-0x0000000072EF0000-0x00000000736A0000-memory.dmp

Filesize
7.7MB

Download
memory/4636-59-0x00000000002F0000-0x0000000000300000-memory.dmp

Filesize
64KB

Download

Analysis

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