3ad2a0e7e10cf69142b1be12a1454552c67dff0b9d21adc0bd2f21cb55203314

Analysis

max time kernel
141s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13-03-2024 09:45

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General

Target

c58e5e4805af3c570c5f87886abdcd0b.exe
Size

174KB
MD5

c58e5e4805af3c570c5f87886abdcd0b
SHA1

1f1ed0befea114674ab6c197737dab114eb1932d
SHA256

3ad2a0e7e10cf69142b1be12a1454552c67dff0b9d21adc0bd2f21cb55203314
SHA512

7dab6d84fb1e3f316c1e0927203582ffcd729a29c07398567826c1c1e846e1ca79c0d84dd35834a4e62fe85c60180ac1fb9201b1a0b55904b0a406bbd3247008
SSDEEP

3072:DBOorECV/ovJo+X3xhMeMJnxtkqXmsVpEs5FzmWD74w85DPwfhBu4b6RIkJI:9Om/82+dwxiqXmsBFX7udPuBQIF

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2192-0-0x0000000000400000-0x0000000000478000-memory.dmp	upx
behavioral1/memory/2192-8-0x0000000000400000-0x0000000000478000-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 created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{BC462E4B-C520-4CA9-B1EC-A7DD36FD6D0A}	c58e5e4805af3c570c5f87886abdcd0b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{BC462E4B-C520-4CA9-B1EC-A7DD36FD6D0A}\	c58e5e4805af3c570c5f87886abdcd0b.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\windivx.dll	c58e5e4805af3c570c5f87886abdcd0b.exe
File opened for modification	C:\Windows\windivx.dll	c58e5e4805af3c570c5f87886abdcd0b.exe
File created	C:\Windows\UJJFKGBUOGU	c58e5e4805af3c570c5f87886abdcd0b.exe

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2192	c58e5e4805af3c570c5f87886abdcd0b.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2864	2192	c58e5e4805af3c570c5f87886abdcd0b.exe	28
PID 2192 wrote to memory of 2864	2192	c58e5e4805af3c570c5f87886abdcd0b.exe	28
PID 2192 wrote to memory of 2864	2192	c58e5e4805af3c570c5f87886abdcd0b.exe	28
PID 2192 wrote to memory of 2864	2192	c58e5e4805af3c570c5f87886abdcd0b.exe	28
PID 2192 wrote to memory of 2864	2192	c58e5e4805af3c570c5f87886abdcd0b.exe	28
PID 2192 wrote to memory of 2864	2192	c58e5e4805af3c570c5f87886abdcd0b.exe	28
PID 2192 wrote to memory of 2864	2192	c58e5e4805af3c570c5f87886abdcd0b.exe	28

C:\Users\Admin\AppData\Local\Temp\c58e5e4805af3c570c5f87886abdcd0b.exe
"C:\Users\Admin\AppData\Local\Temp\c58e5e4805af3c570c5f87886abdcd0b.exe"
1⤵
- Installs/modifies Browser Helper Object
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s C:\Windows\windivx.dll
  2⤵
  PID:2864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\windivx.dll

Filesize
214KB

MD5
fa246deaf2fdcdcf98229bf7a70cc8e1

SHA1
7995fb78277ec06bcbfde9030b53c1b2b4648720

SHA256
c2aca7dcae53db3063ce22b1a758945cefc0cda9595681f68edea0f6f0a6fd1f

SHA512
6a6fd808074f5951b3e50c83a9c51e8520c5a13f0875f860151dc728cffb50cf4abaaa72182a7800d992d2f4fda46170b5981fcec9482d05815d5ba9696dab31

Download Submit
memory/2192-0-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-1-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2192-8-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-10-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download