metasploit | 6083316ee01a2fee563a39e1dbc12b9042ec2c0ac87ddf0b2215e33fda2e1875

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2024, 13:02

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General

Target

5688a22c882e60b2cd2f2cc72601757a.exe
Size

145KB
MD5

5688a22c882e60b2cd2f2cc72601757a
SHA1

444f49bf79dcdaa9a92dc62a9fe6ae3b0fe3b4fd
SHA256

6083316ee01a2fee563a39e1dbc12b9042ec2c0ac87ddf0b2215e33fda2e1875
SHA512

b709400c7f79b09a3da2f6969c4b7256cfb49dc3e42763506cf0a4ac81500d04e4fac70ad16b75ee50767ae645b97d2c39e1b591eab5df5d7c4db6a20811fc3e
SSDEEP

3072:f7nTa+mRUBCVIFedDNG/A88pN4s/OwEx1AK6lb9Qt:Ha+mOBCVI8dZcQqNzAr9Q

Score

10^/10

metasploit backdoor persistence trojan upx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Checks computer location settings 2 TTPs 2 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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	5688a22c882e60b2cd2f2cc72601757a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	csrss.exe

Executes dropped EXE 3 IoCs

pid	Process
1552	csrss.exe
4752	csrss.exe
116	csrss.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4648-0-0x0000000000030000-0x0000000000056000-memory.dmp	upx
behavioral2/memory/4648-1-0x0000000000030000-0x0000000000056000-memory.dmp	upx
behavioral2/files/0x0007000000023203-12.dat	upx
behavioral2/memory/1552-14-0x0000000000300000-0x0000000000326000-memory.dmp	upx
behavioral2/memory/4752-18-0x0000000000300000-0x0000000000326000-memory.dmp	upx
behavioral2/memory/1552-19-0x0000000000300000-0x0000000000326000-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Data Serivce = "csrss.exe"	5688a22c882e60b2cd2f2cc72601757a.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4648 set thread context of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 1552 set thread context of 116	1552	csrss.exe	120

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\csrss.exe	5688a22c882e60b2cd2f2cc72601757a.exe
File opened for modification	C:\Windows\csrss.exe	5688a22c882e60b2cd2f2cc72601757a.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3536	4648	WerFault.exe	14
4596	1552	WerFault.exe	107

Runs net.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 4544	4648	5688a22c882e60b2cd2f2cc72601757a.exe	91
PID 4648 wrote to memory of 4544	4648	5688a22c882e60b2cd2f2cc72601757a.exe	91
PID 4648 wrote to memory of 4544	4648	5688a22c882e60b2cd2f2cc72601757a.exe	91
PID 4648 wrote to memory of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 4648 wrote to memory of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 4648 wrote to memory of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 4648 wrote to memory of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 4648 wrote to memory of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 4648 wrote to memory of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 4648 wrote to memory of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 4648 wrote to memory of 5104	4648	5688a22c882e60b2cd2f2cc72601757a.exe	101
PID 5104 wrote to memory of 1984	5104	5688a22c882e60b2cd2f2cc72601757a.exe	105
PID 5104 wrote to memory of 1984	5104	5688a22c882e60b2cd2f2cc72601757a.exe	105
PID 5104 wrote to memory of 1984	5104	5688a22c882e60b2cd2f2cc72601757a.exe	105
PID 5104 wrote to memory of 1552	5104	5688a22c882e60b2cd2f2cc72601757a.exe	107
PID 5104 wrote to memory of 1552	5104	5688a22c882e60b2cd2f2cc72601757a.exe	107
PID 5104 wrote to memory of 1552	5104	5688a22c882e60b2cd2f2cc72601757a.exe	107
PID 1984 wrote to memory of 4884	1984	cmd.exe	108
PID 1984 wrote to memory of 4884	1984	cmd.exe	108
PID 1984 wrote to memory of 4884	1984	cmd.exe	108
PID 4884 wrote to memory of 2416	4884	net.exe	109
PID 4884 wrote to memory of 2416	4884	net.exe	109
PID 4884 wrote to memory of 2416	4884	net.exe	109
PID 1552 wrote to memory of 4752	1552	csrss.exe	110
PID 1552 wrote to memory of 4752	1552	csrss.exe	110
PID 1552 wrote to memory of 4752	1552	csrss.exe	110
PID 1552 wrote to memory of 116	1552	csrss.exe	120
PID 1552 wrote to memory of 116	1552	csrss.exe	120
PID 1552 wrote to memory of 116	1552	csrss.exe	120
PID 1552 wrote to memory of 116	1552	csrss.exe	120
PID 1552 wrote to memory of 116	1552	csrss.exe	120
PID 1552 wrote to memory of 116	1552	csrss.exe	120
PID 1552 wrote to memory of 116	1552	csrss.exe	120
PID 1552 wrote to memory of 116	1552	csrss.exe	120
PID 116 wrote to memory of 3224	116	csrss.exe	123
PID 116 wrote to memory of 3224	116	csrss.exe	123
PID 116 wrote to memory of 3224	116	csrss.exe	123
PID 3224 wrote to memory of 5020	3224	cmd.exe	125
PID 3224 wrote to memory of 5020	3224	cmd.exe	125
PID 3224 wrote to memory of 5020	3224	cmd.exe	125
PID 5020 wrote to memory of 1228	5020	net.exe	126
PID 5020 wrote to memory of 1228	5020	net.exe	126
PID 5020 wrote to memory of 1228	5020	net.exe	126

C:\Users\Admin\AppData\Local\Temp\5688a22c882e60b2cd2f2cc72601757a.exe
"C:\Users\Admin\AppData\Local\Temp\5688a22c882e60b2cd2f2cc72601757a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Users\Admin\AppData\Local\Temp\5688a22c882e60b2cd2f2cc72601757a.exe
  "C:\Users\Admin\AppData\Local\Temp\5688a22c882e60b2cd2f2cc72601757a.exe"
  2⤵
  PID:4544
- C:\Users\Admin\AppData\Local\Temp\5688a22c882e60b2cd2f2cc72601757a.exe
  "C:\Users\Admin\AppData\Local\Temp\5688a22c882e60b2cd2f2cc72601757a.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:5104
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\x.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1984
  - - C:\Windows\SysWOW64\net.exe
      net stop "Security Center"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4884
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 stop "Security Center"
        5⤵
        
        PID:2416
- - C:\Windows\csrss.exe
    "C:\Windows\csrss.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - C:\Windows\csrss.exe
      "C:\Windows\csrss.exe"
      4⤵
      Executes dropped EXE
      PID:4752
  - - C:\Windows\csrss.exe
      "C:\Windows\csrss.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:116
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\x.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3224
      - C:\Windows\SysWOW64\net.exe
        
        net stop "Security Center"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:5020
        
        C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 stop "Security Center"
        7⤵
        
        PID:1228
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 252
      4⤵
      Program crash
      PID:4596
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 268
  2⤵
  - Program crash
  PID:3536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4648 -ip 4648
1⤵
PID:3932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1552 -ip 1552
1⤵
PID:1952

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\csrss.exe

Filesize
145KB

MD5
5688a22c882e60b2cd2f2cc72601757a

SHA1
444f49bf79dcdaa9a92dc62a9fe6ae3b0fe3b4fd

SHA256
6083316ee01a2fee563a39e1dbc12b9042ec2c0ac87ddf0b2215e33fda2e1875

SHA512
b709400c7f79b09a3da2f6969c4b7256cfb49dc3e42763506cf0a4ac81500d04e4fac70ad16b75ee50767ae645b97d2c39e1b591eab5df5d7c4db6a20811fc3e

Download Submit
C:\x.bat

Filesize
53B

MD5
e6ed7be2b9572503f07663ca6e53759f

SHA1
7ad80bd38f2a27e06c111b551c76ad0a0585c194

SHA256
b1a6c027d18eb5766129a059f68201e6fb8c68d095f3932983009fe5ae2e4df9

SHA512
e0010782b4fe567290536743375112db3107f8390d4c5cbb97f1bf1a8c83825399e1fe2fe9793d351896bb704f3bdec583fa7241b853b136fa9440a927d94227

Download Submit
memory/116-31-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/116-29-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/116-25-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1552-14-0x0000000000300000-0x0000000000326000-memory.dmp

Filesize
152KB

Download
memory/1552-19-0x0000000000300000-0x0000000000326000-memory.dmp

Filesize
152KB

Download
memory/4648-0-0x0000000000030000-0x0000000000056000-memory.dmp

Filesize
152KB

Download
memory/4648-1-0x0000000000030000-0x0000000000056000-memory.dmp

Filesize
152KB

Download
memory/4752-18-0x0000000000300000-0x0000000000326000-memory.dmp

Filesize
152KB

Download
memory/4752-20-0x0000000000300000-0x0000000000326000-memory.dmp

Filesize
152KB

Download
memory/5104-15-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/5104-5-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/5104-4-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/5104-2-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads