b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2

Analysis

max time kernel
190s
max time network
235s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 07:46

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General

Target

b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2.exe
Size

1.2MB
MD5

4e350b3c4bb6c7003a8ec10959399192
SHA1

74657658550ad3427d9bcc5662c0b1d2adaf1848
SHA256

b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2
SHA512

a37f0ef2b96ce16d4df986f3857e20850096365b59428c46dd550f88667c5627904233222afe92bf57158e2212091883fb9a0c84c23fe0bf3321f2b641f9f54e
SSDEEP

24576:jzpyMcg6/nsJMQdjA1UG03Zp+UZYTyD/5LLP5tKEg/nXXXLcDrs7/Knp:jzokqC+03bnDL1ve4DUKnp

Score

9^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000700000001e74d-135.dat	acprotect
behavioral2/files/0x000700000001e74d-134.dat	acprotect

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1740-133-0x0000000000400000-0x0000000000608000-memory.dmp	upx
behavioral2/files/0x000700000001e74d-135.dat	upx
behavioral2/files/0x000700000001e74d-134.dat	upx

Loads dropped DLL 2 IoCs

pid	Process
1740	b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2.exe
1740	b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2.exe

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
4308	1740	WerFault.exe	81
4584	1740	WerFault.exe	81
4568	1740	WerFault.exe	81
1572	1740	WerFault.exe	81

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1740	b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2.exe
1740	b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2.exe
1740	b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2.exe

C:\Users\Admin\AppData\Local\Temp\b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2.exe
"C:\Users\Admin\AppData\Local\Temp\b7efbaaeac41228108641a42ed47f0504e03e418fdc116b12c957ce8c2d408f2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
PID:1740
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 728
  2⤵
  - Program crash
  PID:4308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 796
  2⤵
  - Program crash
  PID:4584
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 1352
  2⤵
  - Program crash
  PID:4568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 1356
  2⤵
  - Program crash
  PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 1740 -ip 1740
1⤵
PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1740 -ip 1740
1⤵
PID:3900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1740 -ip 1740
1⤵
PID:1036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1740 -ip 1740
1⤵
PID:1724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1740 -ip 1740
1⤵
PID:3428

Network

MITRE ATT&CK Enterprise v6

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\{881959D5-17FE-4F98-9C8E-DF5CDC9CC9EE}.dll

Filesize
120KB

MD5
c9f333d1ff898672a34805f94a265329

SHA1
2deaac66698fb2e9b3868d23034c3211c508b739

SHA256
07e546811635574c77edfda126b0e5f5292b4ea13f35158eddedcfc3cbf74b6b

SHA512
048c71e48e2def0bfc69ebfb69b834d650a9377082782333f50728fdfd6675df8093d0c87e606022e55d09f81549d4ca3b640bcdd33b9ddc9aace03ee1466add

Download Submit
C:\Users\Admin\AppData\Local\Temp\{881959D5-17FE-4F98-9C8E-DF5CDC9CC9EE}.dll

Filesize
120KB

MD5
c9f333d1ff898672a34805f94a265329

SHA1
2deaac66698fb2e9b3868d23034c3211c508b739

SHA256
07e546811635574c77edfda126b0e5f5292b4ea13f35158eddedcfc3cbf74b6b

SHA512
048c71e48e2def0bfc69ebfb69b834d650a9377082782333f50728fdfd6675df8093d0c87e606022e55d09f81549d4ca3b640bcdd33b9ddc9aace03ee1466add

Download Submit
memory/1740-132-0x0000000002640000-0x0000000002780000-memory.dmp

Filesize
1.2MB

Download
memory/1740-133-0x0000000000400000-0x0000000000608000-memory.dmp

Filesize
2.0MB

Download
memory/1740-136-0x0000000004980000-0x00000000049DB000-memory.dmp

Filesize
364KB

Download
memory/1740-137-0x0000000004980000-0x00000000049DB000-memory.dmp

Filesize
364KB

Download