4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2

Analysis

max time kernel
144s
max time network
151s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-11-2022 04:29

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General

Target

4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe
Size

33KB
MD5

0f89265061c42e444f83ded6a82171f1
SHA1

41fdcafa35330794ce98e7a19c9f8a0dc0d606cf
SHA256

4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2
SHA512

d98642e79f9f05cc667dabb3e94d9b4278f6e5743bbe14d79602d2ea6c992ecc67070c84835e3e3ae15d8b013e16542476934139ae6c3317da89aae864852492
SSDEEP

768:97XIxF9wgv52zGzcA5JUKytvmBB/Kmy+m+tiIz7q3w:9DYzwgv0KzcA5Jivqi5O7gw

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1736	Sro.com

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b0000000122cc-57.dat	upx
behavioral1/files/0x000b0000000122cc-60.dat	upx
behavioral1/memory/1476-61-0x0000000000400000-0x000000000042C000-memory.dmp	upx
behavioral1/memory/1736-62-0x0000000000400000-0x000000000042C000-memory.dmp	upx
behavioral1/memory/1736-63-0x0000000000400000-0x000000000042C000-memory.dmp	upx

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\sro = "C:\\Windows\\Sro.COM"	Sro.com
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	Sro.com

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Sro.com	Sro.com
File created	C:\Windows\Sro.com	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe
File opened for modification	C:\Windows\Sro.com	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe

Modifies Control Panel 4 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\locale = "00000401"	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\	Sro.com
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\locale = "00000401"	Sro.com

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1736	Sro.com

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1476	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe
1736	Sro.com

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 1736	1476	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe	27
PID 1476 wrote to memory of 1736	1476	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe	27
PID 1476 wrote to memory of 1736	1476	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe	27
PID 1476 wrote to memory of 1736	1476	4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe	27

C:\Users\Admin\AppData\Local\Temp\4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe
"C:\Users\Admin\AppData\Local\Temp\4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2.exe"
1⤵
- Drops file in Windows directory
- Modifies Control Panel
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\Sro.com
  C:\Windows\Sro.com
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Modifies Control Panel
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:1736

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\Sro.com

Filesize
33KB

MD5
0f89265061c42e444f83ded6a82171f1

SHA1
41fdcafa35330794ce98e7a19c9f8a0dc0d606cf

SHA256
4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2

SHA512
d98642e79f9f05cc667dabb3e94d9b4278f6e5743bbe14d79602d2ea6c992ecc67070c84835e3e3ae15d8b013e16542476934139ae6c3317da89aae864852492

Download Submit
C:\Windows\Sro.com

Filesize
33KB

MD5
0f89265061c42e444f83ded6a82171f1

SHA1
41fdcafa35330794ce98e7a19c9f8a0dc0d606cf

SHA256
4f43e04ba885b399249f8233938947726e1805ba06135db148f5167e8af5d8f2

SHA512
d98642e79f9f05cc667dabb3e94d9b4278f6e5743bbe14d79602d2ea6c992ecc67070c84835e3e3ae15d8b013e16542476934139ae6c3317da89aae864852492

Download Submit
memory/1476-61-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1736-62-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1736-63-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download