f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878

Analysis

max time kernel
151s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 19:31

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General

Target

f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
Size

31KB
MD5

8d034cc389be6fb5d245e6b51f433924
SHA1

d20f6c08fa3132ad924dcf911cb5262129e2a995
SHA256

f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878
SHA512

8f3c7b0d0b7fc9f3e2ef1bef6d1734c768d14131f7b35be7ea10d835f6886adbaad5771a8a25e0532781b39c3de51edbede6fe607357496f5fad1b7035e6f5e6
SSDEEP

768:6Kzy3t49hU9zy5HILSvnxJAMgHSPtmg8E/WSwVy:6IyuU9zy5IL6ugyB

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\64to32\Parameters\ServiceDll = "C:\\Windows\\system32\\64to32.dll"	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe

Loads dropped DLL 1 IoCs

pid	Process
5088	svchost.exe

Unexpected DNS network traffic destination 2 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	208.67.220.220
Destination IP	208.67.220.220

Drops file in System32 directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Windowsxp.ini	svchost.exe
File created	C:\Windows\SysWOW64\64to32.dll	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
File opened for modification	C:\Windows\SysWOW64\Windowsxp32.ini	svchost.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	svchost.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	svchost.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	svchost.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe
5088	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 4688	2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe	80
PID 2160 wrote to memory of 4688	2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe	80
PID 2160 wrote to memory of 4688	2160	f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe	80

C:\Users\Admin\AppData\Local\Temp\f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe
"C:\Users\Admin\AppData\Local\Temp\f1da1ee273abd9eec295f5792df13075a10a36fe97391446ff1ac28f9cd2e878.exe"
1⤵
- Sets DLL path for service in the registry
- Checks computer location settings
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F1DA1E~1.EXE >> NUL
  2⤵
  PID:4688

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:5088

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\64to32.dll

Filesize
68KB

MD5
8f6fde7821d6d2908041d6dddabf8423

SHA1
591f62ab4632609a5a7a208def9480daff497079

SHA256
3f85c8788dd2b4e2b20c7bd617c4c9cf92d65ce9c8152874ed6f994b9ac4929a

SHA512
470aa8d3b2302f2b5dc8a5400d080d233d3da81499f3bae5aa603cd3669317240cbb46844149545c5dd4f5569085fc5ca4d065197c3995451dd542313ce5a546

Download Submit
\??\c:\windows\SysWOW64\64to32.dll

Filesize
68KB

MD5
8f6fde7821d6d2908041d6dddabf8423

SHA1
591f62ab4632609a5a7a208def9480daff497079

SHA256
3f85c8788dd2b4e2b20c7bd617c4c9cf92d65ce9c8152874ed6f994b9ac4929a

SHA512
470aa8d3b2302f2b5dc8a5400d080d233d3da81499f3bae5aa603cd3669317240cbb46844149545c5dd4f5569085fc5ca4d065197c3995451dd542313ce5a546

Download Submit
memory/2160-132-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2160-133-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2160-137-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download