cab515bf82a5cae960e4604a5c1c8fe9082ffb881f487641ebd5cb5dbbc47ace

Analysis

max time kernel
152s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06-03-2024 05:55

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General

Target

b6ac242bac68cea8acb6534d577b59f1.exe
Size

191KB
MD5

b6ac242bac68cea8acb6534d577b59f1
SHA1

8ab9df0740de9f16d087fb2a8cf098d255d0df92
SHA256

cab515bf82a5cae960e4604a5c1c8fe9082ffb881f487641ebd5cb5dbbc47ace
SHA512

60aede6ba99e94b146b3e1150fbecb408b0cd1667286dbcd16ee40cd33adc3f978e00e14de7ec8a1b1435702339b6431d7e78f4162cfb3b67471c5abd90dab5c
SSDEEP

3072:NulGcYUlcbS9MJiP+wynjMz8kVh3Lk8lzz4IEJ5ZR3cW:2GQtgiPbyjVulLG5

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1520	Kkyvea.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\XTF1BQO4MU = "C:\\Windows\\Kkyvea.exe"	Kkyvea.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job	b6ac242bac68cea8acb6534d577b59f1.exe
File created	C:\Windows\Kkyvea.exe	b6ac242bac68cea8acb6534d577b59f1.exe
File opened for modification	C:\Windows\Kkyvea.exe	b6ac242bac68cea8acb6534d577b59f1.exe
File created	C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job	b6ac242bac68cea8acb6534d577b59f1.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Internet Explorer\International	Kkyvea.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe
1520	Kkyvea.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 1520	2848	b6ac242bac68cea8acb6534d577b59f1.exe	28
PID 2848 wrote to memory of 1520	2848	b6ac242bac68cea8acb6534d577b59f1.exe	28
PID 2848 wrote to memory of 1520	2848	b6ac242bac68cea8acb6534d577b59f1.exe	28
PID 2848 wrote to memory of 1520	2848	b6ac242bac68cea8acb6534d577b59f1.exe	28

C:\Users\Admin\AppData\Local\Temp\b6ac242bac68cea8acb6534d577b59f1.exe
"C:\Users\Admin\AppData\Local\Temp\b6ac242bac68cea8acb6534d577b59f1.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\Kkyvea.exe
  C:\Windows\Kkyvea.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  PID:1520

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

C:\Windows\Kkyvea.exe

Filesize
191KB

MD5
b6ac242bac68cea8acb6534d577b59f1

SHA1
8ab9df0740de9f16d087fb2a8cf098d255d0df92

SHA256
cab515bf82a5cae960e4604a5c1c8fe9082ffb881f487641ebd5cb5dbbc47ace

SHA512
60aede6ba99e94b146b3e1150fbecb408b0cd1667286dbcd16ee40cd33adc3f978e00e14de7ec8a1b1435702339b6431d7e78f4162cfb3b67471c5abd90dab5c

Download Submit
C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job

Filesize
344B

MD5
c021a6308aca4acfe70aa61057074360

SHA1
a0413514d0e914da12194bdfa9dc7fc3fc379aa2

SHA256
1d1767f1d14f92979a8651c0eb85f47e597aaca0ac2e31c53687cb7bf6e82a59

SHA512
63167ce6b8b204a57e95cc60743ef707be7376d195c5305ae8d9965da6142eb4eaebfec80bb1813693f8ecec276e2e605ac2677a3035ebf5d734406bbe724113

Download Submit
memory/1520-45934-0x00000000002A0000-0x00000000002FF000-memory.dmp

Filesize
380KB

Download
memory/1520-45935-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-13-0x00000000002A0000-0x00000000002FF000-memory.dmp

Filesize
380KB

Download
memory/1520-45946-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45945-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-26316-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45944-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45933-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45943-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45942-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45936-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45938-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45939-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45940-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/1520-45941-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2848-2-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2848-0-0x0000000000230000-0x000000000028F000-memory.dmp

Filesize
380KB

Download
memory/2848-33616-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2848-9646-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2848-1-0x0000000000230000-0x000000000028F000-memory.dmp

Filesize
380KB

Download