ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b

Analysis

max time kernel
150s
max time network
103s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 15:38

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General

Target

ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe
Size

583KB
MD5

7ec9800e97ecb6f8b8590cf7c06da578
SHA1

b5a5fb4aa3588cb4ed3b0be5f9985a3810d32114
SHA256

ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b
SHA512

95ec1c77dbf961ceb8183b0ceeb0be67ef01444f9e525ab26a0f3d8e1623efb195e71e9cd911aca84cf4fa28469a32356a399ba75d75c3268211c955cd9367c1
SSDEEP

12288:x2dcc3zvSUGljdYqvUkKr06SaGLB88B0oOR4xcOx:IN6UivvUkKA6SfLBPB0oOix

Score

8^/10

discovery evasion persistence trojan upx

Malware Config

Signatures

Adds policy 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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\bbspj = "C:\\Windows\\SysWOW64\\lv-LV6.exe"	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe

Executes dropped EXE 1 IoCs

pid	Process
1236	lv-LV6.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1628-55-0x0000000000310000-0x00000000003BE000-memory.dmp	upx
behavioral1/memory/1628-58-0x0000000000310000-0x00000000003BE000-memory.dmp	upx
behavioral1/memory/1628-59-0x0000000000310000-0x00000000003BE000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe

Deletes itself 1 IoCs

pid	Process
1984	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\lv-LV6.exe	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe
File opened for modification	C:\Windows\SysWOW64\lv-LV6.exe	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe
1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe
1236	lv-LV6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe
Token: SeDebugPrivilege	1236	lv-LV6.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 1236	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe	28
PID 1628 wrote to memory of 1236	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe	28
PID 1628 wrote to memory of 1236	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe	28
PID 1628 wrote to memory of 1236	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe	28
PID 1628 wrote to memory of 1984	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe	30
PID 1628 wrote to memory of 1984	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe	30
PID 1628 wrote to memory of 1984	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe	30
PID 1628 wrote to memory of 1984	1628	ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe	30

C:\Users\Admin\AppData\Local\Temp\ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe
"C:\Users\Admin\AppData\Local\Temp\ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe"
1⤵
- Adds policy Run key to start application
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\SysWOW64\lv-LV6.exe
  C:\Windows\SysWOW64\lv-LV6.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1236
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins1302.bat "C:\Users\Admin\AppData\Local\Temp\ab3aa6f41e5056db625a0bbe3df17cb045e676a40a4cec53847a97ce903c423b.exe"
  2⤵
  - Deletes itself
  PID:1984

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\~unins1302.bat

Filesize
49B

MD5
9e0a2f5ab30517809b95a1ff1dd98c53

SHA1
5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

SHA256
97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

SHA512
e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

Download Submit
C:\Windows\SysWOW64\lv-LV6.exe

Filesize
158KB

MD5
05b2e342f1d92b93c2e3bc60c5e801b0

SHA1
c8c83ceebcfd17d397d842ef6206c0c72b237d4e

SHA256
2bac89d8ffe57ccbfb6a9be9c061791bdf8fa00cb58c0154c26ccd34bbfd659e

SHA512
206ce74d2087c7b612dda060e0b1c4a3084e86b0cc5bcce21f3552e07ab2a0860bfd3f1be5ffc63aad26c89c7faf8960dd7216b768d412eb7fce565492ac6594

Download Submit
C:\Windows\SysWOW64\lv-LV6.exe

Filesize
158KB

MD5
05b2e342f1d92b93c2e3bc60c5e801b0

SHA1
c8c83ceebcfd17d397d842ef6206c0c72b237d4e

SHA256
2bac89d8ffe57ccbfb6a9be9c061791bdf8fa00cb58c0154c26ccd34bbfd659e

SHA512
206ce74d2087c7b612dda060e0b1c4a3084e86b0cc5bcce21f3552e07ab2a0860bfd3f1be5ffc63aad26c89c7faf8960dd7216b768d412eb7fce565492ac6594

Download Submit
\Windows\SysWOW64\lv-LV6.exe

Filesize
158KB

MD5
05b2e342f1d92b93c2e3bc60c5e801b0

SHA1
c8c83ceebcfd17d397d842ef6206c0c72b237d4e

SHA256
2bac89d8ffe57ccbfb6a9be9c061791bdf8fa00cb58c0154c26ccd34bbfd659e

SHA512
206ce74d2087c7b612dda060e0b1c4a3084e86b0cc5bcce21f3552e07ab2a0860bfd3f1be5ffc63aad26c89c7faf8960dd7216b768d412eb7fce565492ac6594

Download Submit
memory/1236-72-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/1236-71-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/1628-61-0x000000000037C000-0x00000000003BD000-memory.dmp

Filesize
260KB

Download
memory/1628-63-0x0000000000311000-0x000000000037C000-memory.dmp

Filesize
428KB

Download
memory/1628-62-0x0000000000311000-0x000000000037C000-memory.dmp

Filesize
428KB

Download
memory/1628-60-0x00000000002C0000-0x0000000000304000-memory.dmp

Filesize
272KB

Download
memory/1628-54-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/1628-59-0x0000000000310000-0x00000000003BE000-memory.dmp

Filesize
696KB

Download
memory/1628-58-0x0000000000310000-0x00000000003BE000-memory.dmp

Filesize
696KB

Download
memory/1628-55-0x0000000000310000-0x00000000003BE000-memory.dmp

Filesize
696KB

Download
memory/1628-73-0x0000000000311000-0x000000000037C000-memory.dmp

Filesize
428KB

Download