de9a5e300260b3bc5ebb435bf76ce9e2783266471f853c3e7cb3a8e3070a7e59

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2022, 17:34

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General

Target

de9a5e300260b3bc5ebb435bf76ce9e2783266471f853c3e7cb3a8e3070a7e59.dll
Size

40KB
MD5

26e48730429eca96ce1bfe31646e60a0
SHA1

4ebbe74998c3e316d5c39946ef9b690e3e3ec0b8
SHA256

de9a5e300260b3bc5ebb435bf76ce9e2783266471f853c3e7cb3a8e3070a7e59
SHA512

838cbc56325a6acc6138996f0bd34c97aa2ca3024578f115f370fc98221b3b4c27bac0a19b39fc63705cc5aa23147586bd04c16938c30ffb9ca6307d39b83b67
SSDEEP

768:UNiMUlGYU83FpeiFMogGgkwn9gsoJ7WXMG4b0Pg7x0yEnbcuyD7UE:U2lGMXFq3dn9g7FTwPgtOnouy8E

Score

9^/10

persistence upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0008000000022e3f-135.dat	acprotect
behavioral2/files/0x0008000000022e3f-136.dat	acprotect

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4072-133-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/files/0x0008000000022e3f-135.dat	upx
behavioral2/files/0x0008000000022e3f-136.dat	upx
behavioral2/memory/2184-137-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/2184-138-0x0000000010000000-0x0000000010024000-memory.dmp	upx

Loads dropped DLL 1 IoCs

pid	Process
2184	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\360Update = "rundll32 \"C:\\Users\\Admin\\AppData\\Local\\360data\\taxleor.dll\",_RunAs@16"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe
4072	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 4072	1448	rundll32.exe	81
PID 1448 wrote to memory of 4072	1448	rundll32.exe	81
PID 1448 wrote to memory of 4072	1448	rundll32.exe	81
PID 4072 wrote to memory of 2184	4072	rundll32.exe	82
PID 4072 wrote to memory of 2184	4072	rundll32.exe	82
PID 4072 wrote to memory of 2184	4072	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\de9a5e300260b3bc5ebb435bf76ce9e2783266471f853c3e7cb3a8e3070a7e59.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\de9a5e300260b3bc5ebb435bf76ce9e2783266471f853c3e7cb3a8e3070a7e59.dll,#1
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4072
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 "C:\Users\Admin\AppData\Local\360data\taxleor.dll",_RunAs@16
    3⤵
    - Loads dropped DLL
    PID:2184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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\360data\taxleor.dll

Filesize
40KB

MD5
26e48730429eca96ce1bfe31646e60a0

SHA1
4ebbe74998c3e316d5c39946ef9b690e3e3ec0b8

SHA256
de9a5e300260b3bc5ebb435bf76ce9e2783266471f853c3e7cb3a8e3070a7e59

SHA512
838cbc56325a6acc6138996f0bd34c97aa2ca3024578f115f370fc98221b3b4c27bac0a19b39fc63705cc5aa23147586bd04c16938c30ffb9ca6307d39b83b67

Download Submit
C:\Users\Admin\AppData\Local\360data\taxleor.dll

Filesize
40KB

MD5
26e48730429eca96ce1bfe31646e60a0

SHA1
4ebbe74998c3e316d5c39946ef9b690e3e3ec0b8

SHA256
de9a5e300260b3bc5ebb435bf76ce9e2783266471f853c3e7cb3a8e3070a7e59

SHA512
838cbc56325a6acc6138996f0bd34c97aa2ca3024578f115f370fc98221b3b4c27bac0a19b39fc63705cc5aa23147586bd04c16938c30ffb9ca6307d39b83b67

Download Submit
memory/2184-137-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/2184-138-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/4072-133-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download