2cdb90413ba80e6294c82d7290eb43961ac815500886fc2829deb70c1897d6fe

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2024 12:21

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General

Target

2cdb90413ba80e6294c82d7290eb43961ac815500886fc2829deb70c1897d6fe.dll
Size

632KB
MD5

95f6589475fc87376dd53da033c7e122
SHA1

c7b53481cc0d1a67b75970dcf53b81c565ca6ee2
SHA256

2cdb90413ba80e6294c82d7290eb43961ac815500886fc2829deb70c1897d6fe
SHA512

3556e67ba7da8a6e94ca8cf2c23c9bc57f20b5c6cfe631b1da14c54ec6d66049afc1e0044335a9f4df8ab893a69c953d80c971de2a00242fa9a25b88efd5492d
SSDEEP

12288:H2ojwpSrNlxw8NjvPyA0Y9nE4U54hv+QohBjvrEH71E:H2gwpSrtwmjtF9EB4hvXo/rEH71E

Score

8^/10

upx

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
21	4460	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4460	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4460-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4460-10-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	\??\c:\program files\common files\system\symsrv.dll.000	rundll32.exe
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4460	rundll32.exe
4460	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4460	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4460	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 4460	2196	rundll32.exe	14
PID 2196 wrote to memory of 4460	2196	rundll32.exe	14
PID 2196 wrote to memory of 4460	2196	rundll32.exe	14

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cdb90413ba80e6294c82d7290eb43961ac815500886fc2829deb70c1897d6fe.dll,#1
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4460

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cdb90413ba80e6294c82d7290eb43961ac815500886fc2829deb70c1897d6fe.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4460-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4460-6-0x0000000074E30000-0x0000000074EBB000-memory.dmp

Filesize
556KB

Download
memory/4460-5-0x0000000074E30000-0x0000000074EBB000-memory.dmp

Filesize
556KB

Download
memory/4460-9-0x0000000077100000-0x0000000077163000-memory.dmp

Filesize
396KB

Download
memory/4460-11-0x0000000077100000-0x0000000077163000-memory.dmp

Filesize
396KB

Download
memory/4460-10-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download