34da48ccb02257cffb25281ff8433bae1b94dbfaa95afe0a3a94c419fd4214c7

Analysis

max time kernel
192s
max time network
203s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2023, 22:55

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General

Target

063f675afa71cad1702c4629693904fa.exe
Size

15KB
MD5

063f675afa71cad1702c4629693904fa
SHA1

1b5e9869af970f619a9d0ccdbe914e4b079ff84c
SHA256

34da48ccb02257cffb25281ff8433bae1b94dbfaa95afe0a3a94c419fd4214c7
SHA512

7837406f686461aa96c59f08ee446162444f8f50869cfa9ae4564019533fd70632b558dc143755f12c819e0f02fc6e13137b3cb96036d9e518bed5a30d1a3f40
SSDEEP

192:dYVl8TAAMfhPTnmPIkglNe0LsEkLrLZxWUevQtDpcuajBcxaoVF6B7y:d1qhLYHgfXOrfsQtt9rVF6y

Score

8^/10

evasion persistence spyware stealer upx

Malware Config

Signatures

Blocklisted process makes network request 7 IoCs

flow	pid	Process
75	1208	rundll32.exe
81	1208	rundll32.exe
83	1208	rundll32.exe
84	1208	rundll32.exe
88	1208	rundll32.exe
92	1208	rundll32.exe
83	1208	rundll32.exe

Modifies Windows Firewall 1 TTPs 2 IoCs

evasion

Windows Service

T1543.003

pid	Process
1568	netsh.exe
2276	netsh.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0007000000022c06-9.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1208	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2104-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/memory/2104-4-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/memory/1208-10-0x0000000010000000-0x000000001000A000-memory.dmp	upx
behavioral2/files/0x0007000000022c06-9.dat	upx
behavioral2/memory/1208-11-0x0000000010000000-0x000000001000A000-memory.dmp	upx
behavioral2/memory/1208-15-0x0000000010000000-0x000000001000A000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nfr = "rundll32.exe nfr.dll,ServiceMain /pid=6007"	reg.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\nfr.dll	cmd.exe
File created	C:\Windows\SysWOW64\nfr.assembly	rundll32.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 1392	2104	063f675afa71cad1702c4629693904fa.exe	86
PID 2104 wrote to memory of 1392	2104	063f675afa71cad1702c4629693904fa.exe	86
PID 2104 wrote to memory of 1392	2104	063f675afa71cad1702c4629693904fa.exe	86
PID 1392 wrote to memory of 400	1392	cmd.exe	88
PID 1392 wrote to memory of 400	1392	cmd.exe	88
PID 1392 wrote to memory of 400	1392	cmd.exe	88
PID 1392 wrote to memory of 1548	1392	cmd.exe	90
PID 1392 wrote to memory of 1548	1392	cmd.exe	90
PID 1392 wrote to memory of 1548	1392	cmd.exe	90
PID 1392 wrote to memory of 1568	1392	cmd.exe	96
PID 1392 wrote to memory of 1568	1392	cmd.exe	96
PID 1392 wrote to memory of 1568	1392	cmd.exe	96
PID 1392 wrote to memory of 2276	1392	cmd.exe	97
PID 1392 wrote to memory of 2276	1392	cmd.exe	97
PID 1392 wrote to memory of 2276	1392	cmd.exe	97
PID 1392 wrote to memory of 492	1392	cmd.exe	98
PID 1392 wrote to memory of 492	1392	cmd.exe	98
PID 1392 wrote to memory of 492	1392	cmd.exe	98
PID 1392 wrote to memory of 1028	1392	cmd.exe	100
PID 1392 wrote to memory of 1028	1392	cmd.exe	100
PID 1392 wrote to memory of 1028	1392	cmd.exe	100
PID 1392 wrote to memory of 3544	1392	cmd.exe	101
PID 1392 wrote to memory of 3544	1392	cmd.exe	101
PID 1392 wrote to memory of 3544	1392	cmd.exe	101
PID 1392 wrote to memory of 3692	1392	cmd.exe	102
PID 1392 wrote to memory of 3692	1392	cmd.exe	102
PID 1392 wrote to memory of 3692	1392	cmd.exe	102
PID 1392 wrote to memory of 3936	1392	cmd.exe	103
PID 1392 wrote to memory of 3936	1392	cmd.exe	103
PID 1392 wrote to memory of 3936	1392	cmd.exe	103
PID 1392 wrote to memory of 1400	1392	cmd.exe	104
PID 1392 wrote to memory of 1400	1392	cmd.exe	104
PID 1392 wrote to memory of 1400	1392	cmd.exe	104
PID 1392 wrote to memory of 3800	1392	cmd.exe	105
PID 1392 wrote to memory of 3800	1392	cmd.exe	105
PID 1392 wrote to memory of 3800	1392	cmd.exe	105
PID 1392 wrote to memory of 1208	1392	cmd.exe	106
PID 1392 wrote to memory of 1208	1392	cmd.exe	106
PID 1392 wrote to memory of 1208	1392	cmd.exe	106
PID 1208 wrote to memory of 2348	1208	rundll32.exe	108
PID 1208 wrote to memory of 2348	1208	rundll32.exe	108
PID 1208 wrote to memory of 2348	1208	rundll32.exe	108

C:\Users\Admin\AppData\Local\Temp\063f675afa71cad1702c4629693904fa.exe
"C:\Users\Admin\AppData\Local\Temp\063f675afa71cad1702c4629693904fa.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c c:\nfr.bat
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1392
- - C:\Users\Admin\AppData\Local\Temp\063f675afa71cad1702c4629693904fa.exe
    "C:\Users\Admin\AppData\Local\Temp\063f675afa71cad1702c4629693904fa.exe" /1
    3⤵
    PID:400
- - C:\Windows\SysWOW64\netsh.exe
    netsh add allowedprogram "C:\Windows\System32\rundll32.exe" nfr ENABLE
    3⤵
    PID:1548
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add portopening TCP 80 nfr ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1568
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add portopening TCP 7070 nfr ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2276
- - C:\Windows\SysWOW64\netsh.exe
    netsh winhttp set proxy proxy-server="http=localhost:7070"
    3⤵
    PID:492
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyServer /d "http=localhost:7070" /f
    3⤵
    PID:1028
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyServer /d "http=localhost:7070" /f
    3⤵
    PID:3544
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyOverride /d "*.local;<local>" /f
    3⤵
    PID:3692
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyOverride /d "*.local;<local>" /f
    3⤵
    PID:3936
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /t REG_DWORD /d 01 /f
    3⤵
    PID:1400
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /t REG_DWORD /d 01 /f
    3⤵
    PID:3800
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\System32\rundll32.exe nfr.dll,ServiceMain /pid=6007
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:1208
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v nfr /d "rundll32.exe nfr.dll,ServiceMain /pid=6007" /f
      4⤵
      Adds Run key to start application
      PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\nfr.dll

Filesize
10KB

MD5
5329c63e5756ea2189ef8054a2d21397

SHA1
a0e2df28e41ed189ebe9d1f934d4123ee1f42693

SHA256
3abd88eb4b0a9abc4a9a07f6bc36c9ed851ad9627a24e33421a877cf2abfbaa5

SHA512
f0858050a8951838a4f384e0986b3489341882456a7772b18a427e2bf341dcd623785ec403404de5f5800f7b559d05a52044689cc02cafcd43ecc39019514875

Download Submit
\??\c:\nfr.bat

Filesize
1KB

MD5
b858fe451631cfee4fe6455c2d442911

SHA1
952ade0f4312a7b7c4d290d5494fdcc9fa60f3b9

SHA256
db365ffc15d95ad0cedb44c2a17914642eec34af017e4a0b94aefd9051101956

SHA512
e6a98b356cd399bba9440e9255c93b46d9bf7324ae68c109e3708292b4b26730ff744b3ccae8f397837e4055f3e182a822bf3fe03c74dc5af681fbf36cee9635

Download Submit
memory/1208-10-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

Download
memory/1208-11-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

Download
memory/1208-15-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

Download
memory/2104-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2104-4-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads