1967d22da4cf35379ff71d503094114b713071de67672606c03f239693e0eaae

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13/01/2024, 14:47

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General

Target

58fb6908563d7ca58bc4f11d5af0c2da.exe
Size

27KB
MD5

58fb6908563d7ca58bc4f11d5af0c2da
SHA1

32a0217989b22f099f2748d9a94cce44dc19ec44
SHA256

1967d22da4cf35379ff71d503094114b713071de67672606c03f239693e0eaae
SHA512

ac2c83dcc02fbb8031f44bc84099f38acc4f73608036b4f828fef203a7df183aa2b2ed49e1a25d5696f81027244f103644bbed22e6b98f402b2051071706db5f
SSDEEP

768:ypuTVQoynPg9f4cwafHpb7GYYMSqDC0LEhPFgFwSZHG:ywTV4Pg9fLwGkYYMSqDteMV

Score

8^/10

adware persistence stealer upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Deletes itself 1 IoCs

pid	Process
1920	cmd.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx
behavioral1/memory/2940-9-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects	58fb6908563d7ca58bc4f11d5af0c2da.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	58fb6908563d7ca58bc4f11d5af0c2da.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mmmxabxa.dll	58fb6908563d7ca58bc4f11d5af0c2da.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar	58fb6908563d7ca58bc4f11d5af0c2da.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 1920	2940	58fb6908563d7ca58bc4f11d5af0c2da.exe	28
PID 2940 wrote to memory of 1920	2940	58fb6908563d7ca58bc4f11d5af0c2da.exe	28
PID 2940 wrote to memory of 1920	2940	58fb6908563d7ca58bc4f11d5af0c2da.exe	28
PID 2940 wrote to memory of 1920	2940	58fb6908563d7ca58bc4f11d5af0c2da.exe	28

C:\Users\Admin\AppData\Local\Temp\58fb6908563d7ca58bc4f11d5af0c2da.exe
"C:\Users\Admin\AppData\Local\Temp\58fb6908563d7ca58bc4f11d5af0c2da.exe"
1⤵
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Windows\SysWOW64\cmd.exe
  cmd /c preved.bat
  2⤵
  - Deletes itself
  PID:1920

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

Browser Extensions

T1176

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\preved.bat

Filesize
215B

MD5
0e5dd95efa1a317ea81da2dc91923c46

SHA1
875b59dd6958af19abdc289b89f106980db6b62d

SHA256
7b19af2f8e703e6b11d1a98de814084043e46e4cb29374df3075cae0381e2d2f

SHA512
28a7ed9944c4dac136ac5d334fdbb5fe6e9738388cfca6b4b4d90d169b3aa856f63265396e08ab10b63f143dced7a29ee76a63636944f4dca23676d6924c8ecb

Download Submit
memory/2940-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2940-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads