5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369

Analysis

max time kernel
49s
max time network
55s
platform
windows7_x64
resource
win7-20220715-en
resource tags

arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
submitted
02-08-2022 04:11

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General

Target

5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe
Size

242KB
MD5

f3bb116720f37b7b2d1f12599feac582
SHA1

9810174d6533d843c89c84a0d4e6487177c26b69
SHA256

5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369
SHA512

8b5bc8a41596da47a7ee217870ed4309cd8b398c50a02f83bd17452c8e336ec60339891783454b871dfc46d12a419a2eb689f95912564cf650c5b529e49f1d91

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
940	winbnmx.exe

Loads dropped DLL 2 IoCs

pid	Process
1476	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe
1476	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update 427256357 = "C:\\Windows\\42403478131210255\\winbnmx.exe"	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update 427256357 = "C:\\Windows\\42403478131210255\\winbnmx.exe"	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\42403478131210255\winbnmx.exe	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe
File opened for modification	C:\Windows\42403478131210255\winbnmx.exe	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe
File opened for modification	C:\Windows\42403478131210255	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 940	1476	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe	26
PID 1476 wrote to memory of 940	1476	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe	26
PID 1476 wrote to memory of 940	1476	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe	26
PID 1476 wrote to memory of 940	1476	5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe	26

C:\Users\Admin\AppData\Local\Temp\5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe
"C:\Users\Admin\AppData\Local\Temp\5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\42403478131210255\winbnmx.exe
  C:\Windows\42403478131210255\winbnmx.exe
  2⤵
  - Executes dropped EXE
  PID:940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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\42403478131210255\winbnmx.exe

Filesize
242KB

MD5
f3bb116720f37b7b2d1f12599feac582

SHA1
9810174d6533d843c89c84a0d4e6487177c26b69

SHA256
5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369

SHA512
8b5bc8a41596da47a7ee217870ed4309cd8b398c50a02f83bd17452c8e336ec60339891783454b871dfc46d12a419a2eb689f95912564cf650c5b529e49f1d91

Download Submit
\Windows\42403478131210255\winbnmx.exe

Filesize
242KB

MD5
f3bb116720f37b7b2d1f12599feac582

SHA1
9810174d6533d843c89c84a0d4e6487177c26b69

SHA256
5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369

SHA512
8b5bc8a41596da47a7ee217870ed4309cd8b398c50a02f83bd17452c8e336ec60339891783454b871dfc46d12a419a2eb689f95912564cf650c5b529e49f1d91

Download Submit
\Windows\42403478131210255\winbnmx.exe

Filesize
242KB

MD5
f3bb116720f37b7b2d1f12599feac582

SHA1
9810174d6533d843c89c84a0d4e6487177c26b69

SHA256
5a42e580aa875567dd08135b5f89ae69f4a541b9c737125f9123ad0ed5f5b369

SHA512
8b5bc8a41596da47a7ee217870ed4309cd8b398c50a02f83bd17452c8e336ec60339891783454b871dfc46d12a419a2eb689f95912564cf650c5b529e49f1d91

Download Submit
memory/940-62-0x0000000000298000-0x000000000029F000-memory.dmp

Filesize
28KB

Download
memory/940-64-0x0000000000298000-0x000000000029F000-memory.dmp

Filesize
28KB

Download
memory/940-65-0x0000000000400000-0x000000000529D000-memory.dmp

Filesize
78.6MB

Download
memory/1476-55-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/1476-56-0x00000000768C1000-0x00000000768C3000-memory.dmp

Filesize
8KB

Download
memory/1476-57-0x0000000000400000-0x000000000529D000-memory.dmp

Filesize
78.6MB

Download