02945a7a779f7ed38f6733b35a9bacf5b6e138dffe457f547f7474530b67cb5c

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/02/2024, 09:38

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General

Target

a3745355a77df83c39e8a1087fdf10dd.exe
Size

175KB
MD5

a3745355a77df83c39e8a1087fdf10dd
SHA1

6e614dd8ee6dd14ac34442aebd0dc160f74d1a97
SHA256

02945a7a779f7ed38f6733b35a9bacf5b6e138dffe457f547f7474530b67cb5c
SHA512

d0bad4abf1d4039662602b55317f97aecd1a302a5875aa721edc4968d2f1df3ea88ead34ef11ef41ee2c995988b8dc7f06eb0f5bce9d412f52e05676ee78a636
SSDEEP

3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B87pjBFy0:o68i3odBiTl2+TCU/Wl

Score

6^/10

persistence

Malware Config

Signatures

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart"	a3745355a77df83c39e8a1087fdf10dd.exe

Drops file in Windows directory 13 IoCs

description	ioc	Process
File created	C:\Windows\winhash_up.exe	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon12.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\winhash_up.exez	a3745355a77df83c39e8a1087fdf10dd.exe
File opened for modification	C:\Windows\winhash_up.exez	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon3.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon7.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon13.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon2.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	a3745355a77df83c39e8a1087fdf10dd.exe
File created	C:\Windows\bugMAKER.bat	a3745355a77df83c39e8a1087fdf10dd.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2244	2180	a3745355a77df83c39e8a1087fdf10dd.exe	28
PID 2180 wrote to memory of 2244	2180	a3745355a77df83c39e8a1087fdf10dd.exe	28
PID 2180 wrote to memory of 2244	2180	a3745355a77df83c39e8a1087fdf10dd.exe	28
PID 2180 wrote to memory of 2244	2180	a3745355a77df83c39e8a1087fdf10dd.exe	28

C:\Users\Admin\AppData\Local\Temp\a3745355a77df83c39e8a1087fdf10dd.exe
"C:\Users\Admin\AppData\Local\Temp\a3745355a77df83c39e8a1087fdf10dd.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Windows\bugMAKER.bat
  2⤵
  PID:2244

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\bugMAKER.bat

Filesize
76B

MD5
7439a45000fe05f1524fd39876c5ecc3

SHA1
c7cf6af1f967ec572cab889092412b4deaf08177

SHA256
f39b6a3e07b576d532aa5da18a689781a17d9e195ff71681ab99a72463c804ac

SHA512
a450be68c57986a82721eb1fd82518a26e90f09de7df4c9dc1c29a434cc408be6d2a9a41af48aac101cb9e4258de235d28cbf3d5ac1018b405f54b4835bdbfb1

Download Submit
memory/2180-67-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2244-62-0x0000000002260000-0x0000000002261000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads