kinsing | 2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3

Analysis

max time kernel
136s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 15:43

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General

Target
2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3.exe
Size 234KB
Sample240125-s51d3aahar
SHA256 2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3
MD5 686ef80ae9041b8db739b4172690842d
SHA1 32fc4afc98696e25e6cafca6204bc2ae9d566d9d
SHA512 7aba4653366680bccd548109e964d8cdf0086d17a1e21f0737dc9e3c2f92887bd9f055ebc405a0485a5ee0c2fb602780d649ec773878fd41934cbfc86fca1237
SSDEEP 6144:8liiP/aK2h9H/B+rTBV+UdvrEFp7hK56A:8lfP/aK2vB+nBjvrEH7fA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

kinsing loader persistence upx

Malware Config

Signatures

Kinsing
Kinsing is a loader written in Golang.
loader kinsing
Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000b00000002300a-1.dat	acprotect

Loads dropped DLL 5 IoCs

pid	Process
4856	2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3.exe
2544	WerFault.exe
1864	WerFault.exe
1724	WerFault.exe
2508	WerFault.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000b00000002300a-1.dat	upx
behavioral2/memory/4856-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4856-11-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1864	4856	WerFault.exe	86
2508	4856	WerFault.exe	86

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4856	2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3.exe
4856	2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4856	2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3.exe

C:\Users\Admin\AppData\Local\Temp\2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3.exe
"C:\Users\Admin\AppData\Local\Temp\2dc801d620239504dce52e635a764f3ee0228477029676c906d1e299311b8ef3.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4856 -s 372
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:1864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4856 -s 388
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4856 -ip 4856
1⤵
- Loads dropped DLL
PID:2544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4856 -ip 4856
1⤵
- Loads dropped DLL
PID:1724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

symsrv.dll

Path C:\Program Files\Common Files\System\symsrv.dll
Size 67KB
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
MD5 SHA1 SHA512 SSDEEP

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memory/4856-3-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/4856-4-0x0000000000790000-0x00000000007B9000-memory.dmp

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memory/4856-11-0x0000000010000000-0x0000000010030000-memory.dmp

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