metasploit | 6083316ee01a2fee563a39e1dbc12b9042ec2c0ac87ddf0b2215e33fda2e1875

Analysis

max time kernel
145s
max time network
146s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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

Executes dropped EXE 2 IoCs

pid	Process
2464	csrss.exe
2860	csrss.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1188-0-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/1188-14-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/files/0x000d0000000122dc-29.dat	upx
behavioral1/memory/2464-30-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/2464-48-0x0000000000400000-0x0000000000426000-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 1188 set thread context of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 2464 set thread context of 2860	2464	csrss.exe	34

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
Runs net.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 1188 wrote to memory of 2568	1188	5688a22c882e60b2cd2f2cc72601757a.exe	28
PID 2568 wrote to memory of 2748	2568	5688a22c882e60b2cd2f2cc72601757a.exe	29
PID 2568 wrote to memory of 2748	2568	5688a22c882e60b2cd2f2cc72601757a.exe	29
PID 2568 wrote to memory of 2748	2568	5688a22c882e60b2cd2f2cc72601757a.exe	29
PID 2568 wrote to memory of 2748	2568	5688a22c882e60b2cd2f2cc72601757a.exe	29
PID 2568 wrote to memory of 2464	2568	5688a22c882e60b2cd2f2cc72601757a.exe	31
PID 2568 wrote to memory of 2464	2568	5688a22c882e60b2cd2f2cc72601757a.exe	31
PID 2568 wrote to memory of 2464	2568	5688a22c882e60b2cd2f2cc72601757a.exe	31
PID 2568 wrote to memory of 2464	2568	5688a22c882e60b2cd2f2cc72601757a.exe	31
PID 2748 wrote to memory of 2864	2748	cmd.exe	32
PID 2748 wrote to memory of 2864	2748	cmd.exe	32
PID 2748 wrote to memory of 2864	2748	cmd.exe	32
PID 2748 wrote to memory of 2864	2748	cmd.exe	32
PID 2864 wrote to memory of 3036	2864	net.exe	33
PID 2864 wrote to memory of 3036	2864	net.exe	33
PID 2864 wrote to memory of 3036	2864	net.exe	33
PID 2864 wrote to memory of 3036	2864	net.exe	33
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2464 wrote to memory of 2860	2464	csrss.exe	34
PID 2860 wrote to memory of 1888	2860	csrss.exe	35
PID 2860 wrote to memory of 1888	2860	csrss.exe	35
PID 2860 wrote to memory of 1888	2860	csrss.exe	35
PID 2860 wrote to memory of 1888	2860	csrss.exe	35
PID 1888 wrote to memory of 3016	1888	cmd.exe	37
PID 1888 wrote to memory of 3016	1888	cmd.exe	37
PID 1888 wrote to memory of 3016	1888	cmd.exe	37
PID 1888 wrote to memory of 3016	1888	cmd.exe	37
PID 3016 wrote to memory of 3032	3016	net.exe	38
PID 3016 wrote to memory of 3032	3016	net.exe	38
PID 3016 wrote to memory of 3032	3016	net.exe	38
PID 3016 wrote to memory of 3032	3016	net.exe	38

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:1188
- C:\Users\Admin\AppData\Local\Temp\5688a22c882e60b2cd2f2cc72601757a.exe
  "C:\Users\Admin\AppData\Local\Temp\5688a22c882e60b2cd2f2cc72601757a.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2568
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\x.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2748
  - - C:\Windows\SysWOW64\net.exe
      net stop "Security Center"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2864
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 stop "Security Center"
        5⤵
        
        PID:3036
- - C:\Windows\csrss.exe
    "C:\Windows\csrss.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2464
  - - C:\Windows\csrss.exe
      "C:\Windows\csrss.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2860
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\x.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1888
      - C:\Windows\SysWOW64\net.exe
        
        net stop "Security Center"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:3016
        
        C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 stop "Security Center"
        7⤵
        
        PID:3032

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

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/1188-14-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1188-3-0x0000000000240000-0x0000000000266000-memory.dmp

Filesize
152KB

Download
memory/1188-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-48-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2464-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2568-8-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2568-32-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2568-15-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2568-16-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2568-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-6-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2568-4-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2568-12-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2568-1-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2860-58-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2860-60-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2860-63-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2860-66-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2860-69-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2860-71-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads