c032e7355a59c268614cb55ebe3d4c83dc3e75929bf62f7d2e18c895cad64af5

Analysis

max time kernel
122s
max time network
130s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 22:21

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

HOTFIX/KB832483.exe
Size

2.0MB
MD5

b4060134ceff0f35fac0ef0968558950
SHA1

6f348d3e603d0aa2d84429c69be1698a0d2a6b7b
SHA256

ae810df56535e49c3716df0ac7f8b303e9810b6b90802f6732422e724fa69a23
SHA512

4a9d66e26a4330b0c460d78fa90986837a5f228f9861f398c691c3abdc5806420465cd00b6e0ec652793c77bcc552db7178f19f6e2c71b783768536798abcead
SSDEEP

49152:kJj4LNeJQlHrkUXC1m+9d+7rikF31/KcvpjJ0TOSFNesTA+W73v4M:SUoWL1Spd+39sTRNf1S4M

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2288	dahotfix.exe

Loads dropped DLL 4 IoCs

pid	Process
320	KB832483.exe
2288	dahotfix.exe
2288	dahotfix.exe
2288	dahotfix.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	KB832483.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\dahotfix.log	dahotfix.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 320 wrote to memory of 2288	320	KB832483.exe	28
PID 320 wrote to memory of 2288	320	KB832483.exe	28
PID 320 wrote to memory of 2288	320	KB832483.exe	28
PID 320 wrote to memory of 2288	320	KB832483.exe	28
PID 320 wrote to memory of 2288	320	KB832483.exe	28
PID 320 wrote to memory of 2288	320	KB832483.exe	28
PID 320 wrote to memory of 2288	320	KB832483.exe	28

C:\Users\Admin\AppData\Local\Temp\HOTFIX\KB832483.exe
"C:\Users\Admin\AppData\Local\Temp\HOTFIX\KB832483.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:320
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dahotfix.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dahotfix.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  PID:2288

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dahotfix.ini

Filesize
24KB

MD5
ffcabe82612af7554019d409bf6e6e0e

SHA1
aa757a5488e16d7c85911b54e41c4513708a8607

SHA256
9d41b83ce2c47d403ac495456005371dfe9aeced7bfca819881c82041a1f906b

SHA512
92b9963ddeb6a29ddffefec03916733f8da99a4de00a3a18055dbadbfa192794c9e5336398af8bc602590e0399a54b655c1257aea2551d2394ade2c861799f0f

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\odbcbcp_253.dll

Filesize
24KB

MD5
a1825b549b53699b5f79d6304a7b1cec

SHA1
ad440122e403969305f9bf45b4cb8058b4a83ed2

SHA256
06636809ed6915b791ad9ef2988deaddcca3a01ce7e87a0f6034bd8377f54953

SHA512
73dd397a688c93b453b7c8ec68f2da2b997e6ea4bf64838d05fcecac7eb7d3f9ee19afcd7295330dbe489e4de247099182a9cdf4d96d08d9dfee2a80299f270f

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sqlsrv32_253.dll

Filesize
512KB

MD5
b0f2b24c1c1e0d0a4bfc78006981606f

SHA1
a6f649c5308514d827206fae386a17a08dd8c592

SHA256
f028acac40d8d00b710287a8297eeaa6cf97c11dd7d011531a6ba370223f70c0

SHA512
8aefed3a57b06cfbe96e14f3589077487897c11407ad60ce59dcf35f3a84ba656d800a15f4c5af6d60e2e15cab5f06e55b0fe64e0c237843ec25931f6798fa02

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\dahotfix.exe

Filesize
119KB

MD5
6da333113835598bd7e8cacbdf06dac5

SHA1
4517f066f8cf077f1a5726710ebb194e31b2292e

SHA256
c9a931fa58c8a7557ad8495147977e120799b287143144791e9c8b6d611e70a4

SHA512
4c5f3c0a621b1b4e9076a93f7d969288010f701dd34e2d5c47de2c7827cae7f1474c7a680ee82dad676cb9198dec5dd58ed6bee05d40ed56ec516f2338a13387

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads