b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6

Analysis

max time kernel
57s
max time network
35s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
07/12/2022, 01:52

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General

Target

b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6.exe
Size

317KB
MD5

108fba088fdc348c8d72ea5a7cea77e0
SHA1

3af8475127846dbd4d1d53c723d3cc3991a7f292
SHA256

b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6
SHA512

5174cbad769a4f320ed138c622b71a359edaf3dfc1c69ebad51619e2fba8a981c47d88700c0a0cf2231a9072bd76c9f021a37602f372ea64ecbb18cf8e6b93f7
SSDEEP

3072:kOXpHv1O0koutuVxz+8YPmK8d4aSnww00ptcfMPBm7pcC787LgJsnVZ7YK7fk7oa:JpmoSujMPgd4aSnF00LcUCMgJsnPtPC

Score

8^/10

persistence 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/1140-55-0x0000000000400000-0x00000000004A4000-memory.dmp	upx
behavioral1/memory/1140-62-0x0000000000400000-0x00000000004A4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Zurik System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\antimalware.exe"	reg.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Acrobat Reader = "C:\\Users\\Admin\\AppData\\Local\\Temp\\antihosts.exe"	reg.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1140 wrote to memory of 524	1140	b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6.exe	27
PID 1140 wrote to memory of 524	1140	b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6.exe	27
PID 1140 wrote to memory of 524	1140	b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6.exe	27
PID 1140 wrote to memory of 524	1140	b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6.exe	27
PID 524 wrote to memory of 572	524	cmd.exe	29
PID 524 wrote to memory of 572	524	cmd.exe	29
PID 524 wrote to memory of 572	524	cmd.exe	29
PID 524 wrote to memory of 572	524	cmd.exe	29
PID 524 wrote to memory of 764	524	cmd.exe	30
PID 524 wrote to memory of 764	524	cmd.exe	30
PID 524 wrote to memory of 764	524	cmd.exe	30
PID 524 wrote to memory of 764	524	cmd.exe	30
PID 524 wrote to memory of 1440	524	cmd.exe	31
PID 524 wrote to memory of 1440	524	cmd.exe	31
PID 524 wrote to memory of 1440	524	cmd.exe	31
PID 524 wrote to memory of 1440	524	cmd.exe	31
PID 524 wrote to memory of 1924	524	cmd.exe	32
PID 524 wrote to memory of 1924	524	cmd.exe	32
PID 524 wrote to memory of 1924	524	cmd.exe	32
PID 524 wrote to memory of 1924	524	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6.exe
"C:\Users\Admin\AppData\Local\Temp\b10f7a65037cfa81c37661ca7962d54b8a954d1c427e1d840acf24866ae549b6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1140
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\F3A3.tmp\loadzinho.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:524
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run" /v "Zurik System" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\antimalware.exe" /f
    3⤵
    - Adds Run key to start application
    PID:572
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run" /v "Acrobat Reader" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\antihosts.exe" /f
    3⤵
    - Adds Run key to start application
    PID:764
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\antihosts.exe""
    3⤵
    PID:1440
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\antimalware.exe""
    3⤵
    PID:1924

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\F3A3.tmp\loadzinho.bat

Filesize
1KB

MD5
f01c29416ebdf052d17bcec0b3320dcf

SHA1
1b1e802de2828a5f56661904b174d073f76939a1

SHA256
94909b9fa5fd275de8d14187a39800a5e5fc60e9b46f5f95501b34cc42bede32

SHA512
69f7ff74a3677130dfa01b11f77c043b2bba345e532881bc47b7fd2f1fb3ac84a897464142b8f6cfb4c1eb02dadb7808ec2433af7107ca872e14bd12cc533ceb

Download Submit
memory/1140-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1140-55-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/1140-62-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download