01a759522c503ffdd6f063ad157dc2375b5fd23d3cdeb73736ab7931841f3964

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22-12-2023 13:25

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General

Target

a240e3cf69ab3b831c855bf705e2cc38.exe
Size

195KB
MD5

a240e3cf69ab3b831c855bf705e2cc38
SHA1

ee2ef545973b73b2efcf64f355ba80e7c7ad2794
SHA256

01a759522c503ffdd6f063ad157dc2375b5fd23d3cdeb73736ab7931841f3964
SHA512

90bd52d7e284402c5b44f36c062e20067f02dc1a670e51124259a4ea2e98261d5ecf07b7705f6d7c44a44637ff3d9d625e3531fb5cfa7fe2cd9deffc1e42fad6
SSDEEP

3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B8WpjBFy11Awh:o68i3odBiTl2+TCU/bhuhuI1

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"	a240e3cf69ab3b831c855bf705e2cc38.exe

Drops file in Windows directory 13 IoCs

description	ioc	Process
File opened for modification	C:\Windows\winhash_up.exez	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon7.ico	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon13.ico	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\winhash_up.exez	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon3.ico	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon12.ico	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\bugMAKER.bat	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\winhash_up.exe	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon2.ico	a240e3cf69ab3b831c855bf705e2cc38.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	a240e3cf69ab3b831c855bf705e2cc38.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 2204 wrote to memory of 2700	2204	a240e3cf69ab3b831c855bf705e2cc38.exe	28
PID 2204 wrote to memory of 2700	2204	a240e3cf69ab3b831c855bf705e2cc38.exe	28
PID 2204 wrote to memory of 2700	2204	a240e3cf69ab3b831c855bf705e2cc38.exe	28
PID 2204 wrote to memory of 2700	2204	a240e3cf69ab3b831c855bf705e2cc38.exe	28

C:\Users\Admin\AppData\Local\Temp\a240e3cf69ab3b831c855bf705e2cc38.exe
"C:\Users\Admin\AppData\Local\Temp\a240e3cf69ab3b831c855bf705e2cc38.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Windows\bugMAKER.bat
  2⤵
  PID:2700

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
612dbef5ef58483524040985d5b2aab5

SHA1
0fb304706720880f594692816473fc1090df021f

SHA256
2c808b1bff57384fc9589691918bd84a93a8cb0f748613c1c20abd471f27cb37

SHA512
fcb26ee26f34832313ab83753a3ed69d51dae79cbed5847af8a20a38d17540bdf5f0dbbbf9af4980f7bf01d8ee3aafeb5fd45eef492668bf0fe722f19caab564

Download Submit
memory/2204-67-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2700-62-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads