f499faab313a256c2a684913fc0cade15ad8efd61b99b87114d2af2c51667415

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
15/10/2023, 19:37

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General

Target

4ef4bb360805a70541e40eb802d59b40_exe32.exe
Size

9KB
MD5

4ef4bb360805a70541e40eb802d59b40
SHA1

bc9935d3a5c7497a1fab8b2b18d21e5da5931f8e
SHA256

f499faab313a256c2a684913fc0cade15ad8efd61b99b87114d2af2c51667415
SHA512

5221056d382179b0fa61b517070401344bd865e28272e88a1a26d7a80c472948e5d053e0e6b4bbe4c5b8e1822ed4e150b9171967e706c0a15adb9c5bfb251f0d
SSDEEP

192:HLCUdKBYJsw4t4UjdBr8lk2wgHveFaNJhLkwcud2DH9VwGfct85ySkpV:HRKqdUhBP2wPaNJawcudoD7UIySQV

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2844	b2e.exe

Loads dropped DLL 2 IoCs

pid	Process
2312	4ef4bb360805a70541e40eb802d59b40_exe32.exe
2312	4ef4bb360805a70541e40eb802d59b40_exe32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2312-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2312-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2844	2312	4ef4bb360805a70541e40eb802d59b40_exe32.exe	28
PID 2312 wrote to memory of 2844	2312	4ef4bb360805a70541e40eb802d59b40_exe32.exe	28
PID 2312 wrote to memory of 2844	2312	4ef4bb360805a70541e40eb802d59b40_exe32.exe	28
PID 2312 wrote to memory of 2844	2312	4ef4bb360805a70541e40eb802d59b40_exe32.exe	28
PID 2844 wrote to memory of 2948	2844	b2e.exe	29
PID 2844 wrote to memory of 2948	2844	b2e.exe	29
PID 2844 wrote to memory of 2948	2844	b2e.exe	29
PID 2844 wrote to memory of 2948	2844	b2e.exe	29
PID 2844 wrote to memory of 2556	2844	b2e.exe	31
PID 2844 wrote to memory of 2556	2844	b2e.exe	31
PID 2844 wrote to memory of 2556	2844	b2e.exe	31
PID 2844 wrote to memory of 2556	2844	b2e.exe	31

C:\Users\Admin\AppData\Local\Temp\4ef4bb360805a70541e40eb802d59b40_exe32.exe
"C:\Users\Admin\AppData\Local\Temp\4ef4bb360805a70541e40eb802d59b40_exe32.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Users\Admin\AppData\Local\Temp\42CA.tmp\b2e.exe
  "C:\Users\Admin\AppData\Local\Temp\42CA.tmp\b2e.exe" C:\Users\Admin\AppData\Local\Temp\42CA.tmp\b2e.exe C:\Users\Admin\AppData\Local\Temp "C:\Users\Admin\AppData\Local\Temp\4ef4bb360805a70541e40eb802d59b40_exe32.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\4431.tmp\batfile.bat" "
    3⤵
    PID:2948
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\selfdel0.bat" "
    3⤵
    PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\42CA.tmp\b2e.exe

Filesize
8KB

MD5
b861226487012dd40e26ace365812e80

SHA1
f7e362ffe7180435063edca4fc12ef161b81794f

SHA256
7caac5dd211cad7e695689349b79004b4987f60d5806c220f3295be2647c7c85

SHA512
be1df54852ba6cf859bc573f94ac2134fdca5137c998409130fb0fc6c610188121278df29aceaed01dc5b1332daf52aa56200f44505b4b987344a497aa59102e

Download Submit
C:\Users\Admin\AppData\Local\Temp\42CA.tmp\b2e.exe

Filesize
8KB

MD5
b861226487012dd40e26ace365812e80

SHA1
f7e362ffe7180435063edca4fc12ef161b81794f

SHA256
7caac5dd211cad7e695689349b79004b4987f60d5806c220f3295be2647c7c85

SHA512
be1df54852ba6cf859bc573f94ac2134fdca5137c998409130fb0fc6c610188121278df29aceaed01dc5b1332daf52aa56200f44505b4b987344a497aa59102e

Download Submit
C:\Users\Admin\AppData\Local\Temp\42CA.tmp\b2e.exe

Filesize
8KB

MD5
b861226487012dd40e26ace365812e80

SHA1
f7e362ffe7180435063edca4fc12ef161b81794f

SHA256
7caac5dd211cad7e695689349b79004b4987f60d5806c220f3295be2647c7c85

SHA512
be1df54852ba6cf859bc573f94ac2134fdca5137c998409130fb0fc6c610188121278df29aceaed01dc5b1332daf52aa56200f44505b4b987344a497aa59102e

Download Submit
C:\Users\Admin\AppData\Local\Temp\4431.tmp\batfile.bat

Filesize
367B

MD5
1a74e6f043e5fc8c05e07cc71c0a432f

SHA1
733dafe0964816b343e6c992769d61c786cdf7ce

SHA256
63117cf2fb22ec54283b1b32d09cd35da32a96bc310c1a14b454c5219cf7a4d2

SHA512
00d2bfd3e6bfede107f1aa18dc4b3b851f29438b73b74b11cacf658434af4ef897ebbd64017a3b4e5707cdd50202bb1aa38ce0ffc1986a72ca1f5e26a0ea6f29

Download Submit
C:\Users\Admin\AppData\Local\Temp\4431.tmp\batfile.bat

Filesize
367B

MD5
1a74e6f043e5fc8c05e07cc71c0a432f

SHA1
733dafe0964816b343e6c992769d61c786cdf7ce

SHA256
63117cf2fb22ec54283b1b32d09cd35da32a96bc310c1a14b454c5219cf7a4d2

SHA512
00d2bfd3e6bfede107f1aa18dc4b3b851f29438b73b74b11cacf658434af4ef897ebbd64017a3b4e5707cdd50202bb1aa38ce0ffc1986a72ca1f5e26a0ea6f29

Download Submit
C:\Users\Admin\AppData\Local\Temp\selfdel0.bat

Filesize
158B

MD5
588a5f3689568d468934c4871529f53c

SHA1
499054df38ee8b2da96d46b30585ace1ff5e37ff

SHA256
72d8573bec3df917d650e6d903be37aeff1c83647a63cfd2ac7143c7db2d70cc

SHA512
037a2b508fa4495eee9f1d820c5261898bf8b9ad511e1bccde759ae80bbb1229cd730b2e9e9ffc5c1979cc1b43c004e9e2098c5bb21752bdd81f39a0f4669bcc

Download Submit
C:\Users\Admin\AppData\Local\Temp\selfdel0.bat

Filesize
158B

MD5
588a5f3689568d468934c4871529f53c

SHA1
499054df38ee8b2da96d46b30585ace1ff5e37ff

SHA256
72d8573bec3df917d650e6d903be37aeff1c83647a63cfd2ac7143c7db2d70cc

SHA512
037a2b508fa4495eee9f1d820c5261898bf8b9ad511e1bccde759ae80bbb1229cd730b2e9e9ffc5c1979cc1b43c004e9e2098c5bb21752bdd81f39a0f4669bcc

Download Submit
\Users\Admin\AppData\Local\Temp\42CA.tmp\b2e.exe

Filesize
8KB

MD5
b861226487012dd40e26ace365812e80

SHA1
f7e362ffe7180435063edca4fc12ef161b81794f

SHA256
7caac5dd211cad7e695689349b79004b4987f60d5806c220f3295be2647c7c85

SHA512
be1df54852ba6cf859bc573f94ac2134fdca5137c998409130fb0fc6c610188121278df29aceaed01dc5b1332daf52aa56200f44505b4b987344a497aa59102e

Download Submit
\Users\Admin\AppData\Local\Temp\42CA.tmp\b2e.exe

Filesize
8KB

MD5
b861226487012dd40e26ace365812e80

SHA1
f7e362ffe7180435063edca4fc12ef161b81794f

SHA256
7caac5dd211cad7e695689349b79004b4987f60d5806c220f3295be2647c7c85

SHA512
be1df54852ba6cf859bc573f94ac2134fdca5137c998409130fb0fc6c610188121278df29aceaed01dc5b1332daf52aa56200f44505b4b987344a497aa59102e

Download Submit
memory/2312-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2312-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2312-5-0x00000000003C0000-0x00000000003C5000-memory.dmp

Filesize
20KB

Download
memory/2844-14-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/2844-38-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download