9c4677e9f3ec12b05184ff8b3dcf5d1591579bc940d64191d9e1bda6a5de2a26

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 23:39

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General

Target

d75e46c5b5ea4ea3a2eb2ef69571c777.exe
Size

13KB
MD5

d75e46c5b5ea4ea3a2eb2ef69571c777
SHA1

9341e1106bc8db36e26eb6e4f11de280ba55062d
SHA256

9c4677e9f3ec12b05184ff8b3dcf5d1591579bc940d64191d9e1bda6a5de2a26
SHA512

cd691470cce7761869d26df9b95bdeb116fe9bf4475a9c91e754e2303f9f1539f047b0ec43d30cd5c55c6cf52b2f30066c2a94faedb3e6923bb024915f182629
SSDEEP

384:BGC7b7P4tezbG3ShKSJ2di7nvm/gPhnQCD/:V7b7P433QYdImIJQC

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
624	delnicek.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3768-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x000a000000023176-4.dat	upx
behavioral2/memory/624-6-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/3768-7-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\delnice.dll	d75e46c5b5ea4ea3a2eb2ef69571c777.exe
File created	C:\Windows\SysWOW64\delnicek.exe	d75e46c5b5ea4ea3a2eb2ef69571c777.exe
File opened for modification	C:\Windows\SysWOW64\delnicek.exe	d75e46c5b5ea4ea3a2eb2ef69571c777.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 624	3768	d75e46c5b5ea4ea3a2eb2ef69571c777.exe	88
PID 3768 wrote to memory of 624	3768	d75e46c5b5ea4ea3a2eb2ef69571c777.exe	88
PID 3768 wrote to memory of 624	3768	d75e46c5b5ea4ea3a2eb2ef69571c777.exe	88
PID 3768 wrote to memory of 5772	3768	d75e46c5b5ea4ea3a2eb2ef69571c777.exe	102
PID 3768 wrote to memory of 5772	3768	d75e46c5b5ea4ea3a2eb2ef69571c777.exe	102
PID 3768 wrote to memory of 5772	3768	d75e46c5b5ea4ea3a2eb2ef69571c777.exe	102

C:\Users\Admin\AppData\Local\Temp\d75e46c5b5ea4ea3a2eb2ef69571c777.exe
"C:\Users\Admin\AppData\Local\Temp\d75e46c5b5ea4ea3a2eb2ef69571c777.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3768
- C:\Windows\SysWOW64\delnicek.exe
  C:\Windows\system32\delnicek.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:624
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\d75e46c5b5ea4ea3a2eb2ef69571c777.exe.bat
  2⤵
  PID:5772

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\d75e46c5b5ea4ea3a2eb2ef69571c777.exe.bat

Filesize
182B

MD5
6d184225ef367c42adff82b98984366f

SHA1
567e5e14edbc3193b8dd23fa3e35cdf3608537bd

SHA256
8f5f642a625bf192038c0e4aa03d8bbee87c85bf5b69f370a862a5c3a71dc8df

SHA512
a611a39823095659dbced78b31b10022d3ccc03f59dfffb8f505543f6fe219597eef1bca3419a19b3909abef21d449a4a77d6bc4b65b8e663b83345f30872a0a

Download Submit
C:\Windows\SysWOW64\delnicek.exe

Filesize
13KB

MD5
d75e46c5b5ea4ea3a2eb2ef69571c777

SHA1
9341e1106bc8db36e26eb6e4f11de280ba55062d

SHA256
9c4677e9f3ec12b05184ff8b3dcf5d1591579bc940d64191d9e1bda6a5de2a26

SHA512
cd691470cce7761869d26df9b95bdeb116fe9bf4475a9c91e754e2303f9f1539f047b0ec43d30cd5c55c6cf52b2f30066c2a94faedb3e6923bb024915f182629

Download Submit
memory/624-6-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3768-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3768-7-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download