bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0

Analysis

max time kernel
186s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 18:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0.exe
Size

40KB
MD5

3977442beb038b57d50aaf11fcc5f589
SHA1

8274cf3ce45c8973d292927d7dc57e9e2aa11a5c
SHA256

bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0
SHA512

6422fbefb1a94ee7dcba25ec401df262d7fd7cb884bc9371b7e30447859df9c0b641caa938a96009864a6cd954336567ea8db0736f7a233c17d37f6d359e9818
SSDEEP

384:LlqPDZD1zHET9F8Esd8vmccAbpbNDgITHRN4EddWjRHbG3HQLqVIaO/pPHkRFNcx:L8ZD1DIGddEDbvHN4wkQ3wLMisC+JL

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2272	Windows.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
3152	netsh.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	bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\55b3825ee39ada2fcddf7c7accbde69e.exe	Windows.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\55b3825ee39ada2fcddf7c7accbde69e.exe	Windows.exe

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\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\55b3825ee39ada2fcddf7c7accbde69e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows.exe\" .."	Windows.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\55b3825ee39ada2fcddf7c7accbde69e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows.exe\" .."	Windows.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe
2272	Windows.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2272	Windows.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 2272	4804	bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0.exe	79
PID 4804 wrote to memory of 2272	4804	bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0.exe	79
PID 4804 wrote to memory of 2272	4804	bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0.exe	79
PID 2272 wrote to memory of 3152	2272	Windows.exe	80
PID 2272 wrote to memory of 3152	2272	Windows.exe	80
PID 2272 wrote to memory of 3152	2272	Windows.exe	80

C:\Users\Admin\AppData\Local\Temp\bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0.exe
"C:\Users\Admin\AppData\Local\Temp\bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Users\Admin\AppData\Local\Temp\Windows.exe
  "C:\Users\Admin\AppData\Local\Temp\Windows.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Windows.exe" "Windows.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:3152

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Windows.exe

Filesize
40KB

MD5
3977442beb038b57d50aaf11fcc5f589

SHA1
8274cf3ce45c8973d292927d7dc57e9e2aa11a5c

SHA256
bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0

SHA512
6422fbefb1a94ee7dcba25ec401df262d7fd7cb884bc9371b7e30447859df9c0b641caa938a96009864a6cd954336567ea8db0736f7a233c17d37f6d359e9818

Download Submit
C:\Users\Admin\AppData\Local\Temp\Windows.exe

Filesize
40KB

MD5
3977442beb038b57d50aaf11fcc5f589

SHA1
8274cf3ce45c8973d292927d7dc57e9e2aa11a5c

SHA256
bf73b303785f81f5a9b591ff73e915ba2434362c25cdb3d69ab7938751e2b7a0

SHA512
6422fbefb1a94ee7dcba25ec401df262d7fd7cb884bc9371b7e30447859df9c0b641caa938a96009864a6cd954336567ea8db0736f7a233c17d37f6d359e9818

Download Submit
memory/2272-138-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download
memory/2272-139-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download
memory/4804-132-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download
memory/4804-137-0x00000000750A0000-0x0000000075651000-memory.dmp

Filesize
5.7MB

Download