77dcfe4f6402827ed7b3bee0636530a111a73e54964647c0977192731d84c56c

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/01/2024, 06:29

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General

Target

5a864c3c4a5c37d822447f6fa76024a5.exe
Size

408KB
MD5

5a864c3c4a5c37d822447f6fa76024a5
SHA1

c58bd04b675fe46de542d8864fb217e0d07cacce
SHA256

77dcfe4f6402827ed7b3bee0636530a111a73e54964647c0977192731d84c56c
SHA512

d3cd3e276b58842aa6824e076f65e1005742d6c9935fb953b4ae5d63b5ff3c6bf62351e75f858370c94071985965d22480e71c82e82faab5c08cdbcfdaf9848e
SSDEEP

12288:OFAypKUXaBOzJdqxXNfRQ6kTNmTORtVFw0UoZA:OW2vd4NfRQpTsu53ZA

Score

10^/10

evasion persistence trojan upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\hrt54is56ijfgte.exe"	serhur45hu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\hrt54is56ijfgte.exe"	serhur45hu.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	serhur45hu.exe

Disables Task Manager via registry modification
evasion

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{GjPEEl6E-E6bb-bcZn-Gtsv-dAgH6KqQHsxT}	serhur45hu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{GjPEEl6E-E6bb-bcZn-Gtsv-dAgH6KqQHsxT}\6zvcaxR5ls4KB9Y = "\"C:\\Users\\Admin\\AppData\\Roaming\\hrt54is56ijfgte.exe\" /ActiveX"	serhur45hu.exe

Executes dropped EXE 2 IoCs

pid	Process
2800	serhur45hu.exe
2648	serhur45hu.exe

Loads dropped DLL 6 IoCs

pid	Process
2832	5a864c3c4a5c37d822447f6fa76024a5.exe
2832	5a864c3c4a5c37d822447f6fa76024a5.exe
2832	5a864c3c4a5c37d822447f6fa76024a5.exe
2832	5a864c3c4a5c37d822447f6fa76024a5.exe
2832	5a864c3c4a5c37d822447f6fa76024a5.exe
2648	serhur45hu.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2648-38-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-41-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-42-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-44-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-43-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-51-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-80-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-81-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-83-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-93-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-107-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-117-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-123-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-133-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-147-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-157-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-167-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-173-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-187-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral1/memory/2648-197-0x0000000000400000-0x000000000049A000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\sr5tuhsrt6xhjudry6 = "C:\\Users\\Admin\\AppData\\Roaming\\hsr5uyhrxt\\serhur45hu.exe"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\6zvcaxR5ls4KB9Y = "C:\\Users\\Admin\\AppData\\Roaming\\hrt54is56ijfgte.exe"	serhur45hu.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\6zvcaxR5ls4KB9Y = "C:\\Users\\Admin\\AppData\\Roaming\\hrt54is56ijfgte.exe"	serhur45hu.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	serhur45hu.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	serhur45hu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 2648	2800	serhur45hu.exe	32

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Internet Explorer\Main	serhur45hu.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe

Suspicious use of FindShellTrayWindow 10 IoCs

pid	Process
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
2832	5a864c3c4a5c37d822447f6fa76024a5.exe
2800	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe
2648	serhur45hu.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2832 wrote to memory of 2780	2832	5a864c3c4a5c37d822447f6fa76024a5.exe	28
PID 2832 wrote to memory of 2780	2832	5a864c3c4a5c37d822447f6fa76024a5.exe	28
PID 2832 wrote to memory of 2780	2832	5a864c3c4a5c37d822447f6fa76024a5.exe	28
PID 2832 wrote to memory of 2780	2832	5a864c3c4a5c37d822447f6fa76024a5.exe	28
PID 2780 wrote to memory of 2540	2780	cmd.exe	30
PID 2780 wrote to memory of 2540	2780	cmd.exe	30
PID 2780 wrote to memory of 2540	2780	cmd.exe	30
PID 2780 wrote to memory of 2540	2780	cmd.exe	30
PID 2832 wrote to memory of 2800	2832	5a864c3c4a5c37d822447f6fa76024a5.exe	31
PID 2832 wrote to memory of 2800	2832	5a864c3c4a5c37d822447f6fa76024a5.exe	31
PID 2832 wrote to memory of 2800	2832	5a864c3c4a5c37d822447f6fa76024a5.exe	31
PID 2832 wrote to memory of 2800	2832	5a864c3c4a5c37d822447f6fa76024a5.exe	31
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32
PID 2800 wrote to memory of 2648	2800	serhur45hu.exe	32

C:\Users\Admin\AppData\Local\Temp\5a864c3c4a5c37d822447f6fa76024a5.exe
"C:\Users\Admin\AppData\Local\Temp\5a864c3c4a5c37d822447f6fa76024a5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\259423609.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "sr5tuhsrt6xhjudry6" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\hsr5uyhrxt\serhur45hu.exe" /f
    3⤵
    - Adds Run key to start application
    PID:2540
- C:\Users\Admin\AppData\Roaming\hsr5uyhrxt\serhur45hu.exe
  "C:\Users\Admin\AppData\Roaming\hsr5uyhrxt\serhur45hu.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Users\Admin\AppData\Roaming\hsr5uyhrxt\serhur45hu.exe
    "C:\Users\Admin\AppData\Roaming\hsr5uyhrxt\serhur45hu.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Disables RegEdit via registry modification
    - Modifies Installed Components in the registry
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Checks whether UAC is enabled
    - Modifies WinLogon
    - Modifies Internet Explorer settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    PID:2648

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\53STNJLW\errorPageStrings[2]

Filesize
2KB

MD5
e3e4a98353f119b80b323302f26b78fa

SHA1
20ee35a370cdd3a8a7d04b506410300fd0a6a864

SHA256
9466d620dc57835a2475f8f71e304f54aee7160e134ba160baae0f19e5e71e66

SHA512
d8e4d73c76804a5abebd5dbc3a86dcdb6e73107b873175a8de67332c113fb7c4899890bf7972e467866fa4cd100a7e2a10a770e5a9c41cbf23b54351b771dcee

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\53STNJLW\httpErrorPagesScripts[1]

Filesize
8KB

MD5
3f57b781cb3ef114dd0b665151571b7b

SHA1
ce6a63f996df3a1cccb81720e21204b825e0238c

SHA256
46e019fa34465f4ed096a9665d1827b54553931ad82e98be01edb1ddbc94d3ad

SHA512
8cbf4ef582332ae7ea605f910ad6f8a4bc28513482409fa84f08943a72cac2cf0fa32b6af4c20c697e1fac2c5ba16b5a64a23af0c11eefbf69625b8f9f90c8fa

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\HJ0GGVIM\dnserrordiagoff[1]

Filesize
1KB

MD5
47f581b112d58eda23ea8b2e08cf0ff0

SHA1
6ec1df5eaec1439573aef0fb96dabfc953305e5b

SHA256
b1c947d00db5fce43314c56c663dbeae0ffa13407c9c16225c17ccefc3afa928

SHA512
187383eef3d646091e9f68eff680a11c7947b3d9b54a78cc6de4a04629d7037e9c97673ac054a6f1cf591235c110ca181a6b69ecba0e5032168f56f4486fff92

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\M2VO416U\NewErrorPageTemplate[1]

Filesize
1KB

MD5
cdf81e591d9cbfb47a7f97a2bcdb70b9

SHA1
8f12010dfaacdecad77b70a3e781c707cf328496

SHA256
204d95c6fb161368c795bb63e538fe0b11f9e406494bb5758b3b0d60c5f651bd

SHA512
977dcc2c6488acaf0e5970cef1a7a72c9f9dc6bb82da54f057e0853c8e939e4ab01b163eb7a5058e093a8bc44ecad9d06880fdc883e67e28ac67fee4d070a4cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\259423609.bat

Filesize
159B

MD5
a80658d9ea7c0ddebccbe6de91b34b20

SHA1
0ee816fbd7dde9db479e9a22a70a1318a9f40e06

SHA256
a78032a0a6ba3f51f1c94a9527247c4b69af3d42922095968fbcb81ab23147f6

SHA512
f861719d968e2926702d4b45e436c89afee97f07eabf8355f4fa21a85411908e8a5a664f7b47fc1deaccbfe2de293d19b4d86499d982c6045cd9faee22ba3a19

Download Submit
\Users\Admin\AppData\Roaming\hsr5uyhrxt\dwlGina3.dll

Filesize
93KB

MD5
1173123287198dce1eb831f04e28352c

SHA1
39d650f4297c990a7ffaa7dc3b6d0ef903c9bd14

SHA256
65d4582e135c774d9c827ae08de8b77f199ee934f13d1a0537df4f5d18f590ba

SHA512
e9fdb6e808b0f3ed850fb364d48609a9726fd41ad138594fc04f8d48d5672aec3aaa76af236f07c4263c053dc539f99009e74491adb03c885190dcce78f0cede

Download Submit
\Users\Admin\AppData\Roaming\hsr5uyhrxt\serhur45hu.exe

Filesize
408KB

MD5
d64b3a3f412975f82af55bc01b1e005f

SHA1
033ebc32d070dc97caf13d8344c17012d845e5d0

SHA256
0aa8474ae9862d53ee4cac56101b4654affded1d706295e2e0d32523552cea48

SHA512
32518ee8325cfba58ca8e3e4306c9671ccca1a52372621b3a51bf3bc38e28ffb155d9fbf96d5099885197d2f0a01304662e3bc0b807828a75b7a039efa2e5e1a

Download Submit
memory/2648-83-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-93-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-45-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2648-51-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-52-0x00000000002A0000-0x00000000002BC000-memory.dmp

Filesize
112KB

Download
memory/2648-80-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-81-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-43-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-88-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2648-44-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-42-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-49-0x00000000002A0000-0x00000000002BC000-memory.dmp

Filesize
112KB

Download
memory/2648-41-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-38-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-107-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-117-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-123-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-133-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-147-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-157-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-167-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-173-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-187-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2648-197-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download