f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045

General

Target

f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe
Size

176KB
MD5

6c524d4b40bc722b19eb23d5b6525017
SHA1

d16cc33392873a88cddf996298e8075e743a3cc7
SHA256

f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045
SHA512

1803124b996a234fc4513296435b06729ee18e142dd6d13d541755acbf8e5311b8c66722ae67f687bfc1d3de99e7ee6fa1cfecd55b74ed31049ef7efe37bb7c0
SSDEEP

3072:/3c1fP4AJJ8fUN32pHWA0QWLXLRSwTQBwKE7W2DXCz6ASQiBFWKgJJoIiETA7xX:fOPjYsN32ZWZR1QBwKE7W2DXCzdSAEJT

Score

8^/10

aspackv2 bootkit persistence spyware stealer

Malware Config

Signatures

ASPack v2.12-2.42 7 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x00080000000122fc-55.dat	aspack_v212_v242
behavioral1/files/0x00080000000122fc-57.dat	aspack_v212_v242
behavioral1/files/0x00080000000122fc-61.dat	aspack_v212_v242
behavioral1/files/0x00080000000122fc-60.dat	aspack_v212_v242
behavioral1/files/0x00080000000122fc-63.dat	aspack_v212_v242
behavioral1/files/0x00080000000122fc-62.dat	aspack_v212_v242
behavioral1/files/0x00080000000122fc-77.dat	aspack_v212_v242

Executes dropped EXE 2 IoCs

pid	Process
536	INSTALL.exe
2000	Byxdl.exe

Deletes itself 1 IoCs

pid	Process
1716	cmd.exe

Loads dropped DLL 4 IoCs

pid	Process
1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe
536	INSTALL.exe
536	INSTALL.exe
536	INSTALL.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\TFM0N = "c:\\UTPVVQEE71UP1QL2\\Byxdl.exe"	Byxdl.exe

Enumerates connected drives 3 TTPs 24 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:	Byxdl.exe
File opened (read-only)	\??\g:	Byxdl.exe
File opened (read-only)	\??\n:	Byxdl.exe
File opened (read-only)	\??\o:	Byxdl.exe
File opened (read-only)	\??\u:	Byxdl.exe
File opened (read-only)	\??\v:	Byxdl.exe
File opened (read-only)	\??\a:	Byxdl.exe
File opened (read-only)	\??\m:	Byxdl.exe
File opened (read-only)	\??\r:	Byxdl.exe
File opened (read-only)	\??\y:	Byxdl.exe
File opened (read-only)	\??\z:	Byxdl.exe
File opened (read-only)	\??\b:	Byxdl.exe
File opened (read-only)	\??\j:	Byxdl.exe
File opened (read-only)	\??\k:	Byxdl.exe
File opened (read-only)	\??\p:	Byxdl.exe
File opened (read-only)	\??\q:	Byxdl.exe
File opened (read-only)	\??\s:	Byxdl.exe
File opened (read-only)	\??\t:	Byxdl.exe
File opened (read-only)	\??\x:	Byxdl.exe
File opened (read-only)	\??\h:	Byxdl.exe
File opened (read-only)	\??\i:	Byxdl.exe
File opened (read-only)	\??\l:	Byxdl.exe
File opened (read-only)	\??\w:	Byxdl.exe
File opened (read-only)	\??\f:	Byxdl.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	Byxdl.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Byxdl.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Byxdl.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
536	INSTALL.exe
2000	Byxdl.exe
2000	Byxdl.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	536	INSTALL.exe
Token: SeDebugPrivilege	536	INSTALL.exe
Token: SeDebugPrivilege	536	INSTALL.exe
Token: SeDebugPrivilege	2000	Byxdl.exe
Token: SeDebugPrivilege	2000	Byxdl.exe
Token: SeDebugPrivilege	2000	Byxdl.exe
Token: SeDebugPrivilege	2000	Byxdl.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
536	INSTALL.exe
2000	Byxdl.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 536	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	28
PID 1520 wrote to memory of 536	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	28
PID 1520 wrote to memory of 536	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	28
PID 1520 wrote to memory of 536	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	28
PID 1520 wrote to memory of 536	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	28
PID 1520 wrote to memory of 536	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	28
PID 1520 wrote to memory of 536	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	28
PID 1520 wrote to memory of 1716	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	29
PID 1520 wrote to memory of 1716	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	29
PID 1520 wrote to memory of 1716	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	29
PID 1520 wrote to memory of 1716	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	29
PID 1520 wrote to memory of 1716	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	29
PID 1520 wrote to memory of 1716	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	29
PID 1520 wrote to memory of 1716	1520	f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe	29
PID 536 wrote to memory of 2000	536	INSTALL.exe	31
PID 536 wrote to memory of 2000	536	INSTALL.exe	31
PID 536 wrote to memory of 2000	536	INSTALL.exe	31
PID 536 wrote to memory of 2000	536	INSTALL.exe	31
PID 536 wrote to memory of 2000	536	INSTALL.exe	31
PID 536 wrote to memory of 2000	536	INSTALL.exe	31
PID 536 wrote to memory of 2000	536	INSTALL.exe	31

C:\Users\Admin\AppData\Local\Temp\f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe
"C:\Users\Admin\AppData\Local\Temp\f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1520
- C:\BOT\INSTALL.exe
  "C:\BOT\INSTALL.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:536
- - \??\c:\UTPVVQEE71UP1QL2\Byxdl.exe
    c:\UTPVVQEE71UP1QL2\Byxdl.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Enumerates connected drives
    - Writes to the Master Boot Record (MBR)
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /C FOR /L %I IN (0,1,9999) DO DEL "C:\Users\Admin\AppData\Local\Temp\f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe";RD "C:\Users\Admin\AppData\Local\Temp";IF NOT EXIST "C:\Users\Admin\AppData\Local\Temp\f22ca02dc616550d2b5fa981de77ccc9a357ca7c32a0c773043c257ce85b5045.exe" EXIT
  2⤵
  - Deletes itself
  PID:1716

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\BOT\Config.ini

Filesize
104KB

MD5
b3726a8b2862fb220c90ccee851747e1

SHA1
c164b82887b679665181ed5bd26846b8097e19e9

SHA256
a69b4382c1bcaeaef4f95b1bd491698fefc2a4f5011ccec8c80cf90b5807dd46

SHA512
bbb37da35297ab677d74cdfbeca3c64ac48281135ec86339323e3c4ab96bbd3f1f66544fcde12ed7c32bc065846a00f4b1550a9172511c72c13d5cbdb06d064e

Download Submit
C:\BOT\INSTALL.exe

Filesize
103KB

MD5
923c992081b36000ecf91ab112f6fde6

SHA1
1a094ab6c47354a4fa6d0a02ccee00e6513a3697

SHA256
9e3a05b7daf3ece6a1574372bd94f596b8d2c0fa530bafacdd525faccdcc661a

SHA512
b746f26a08ce9fa8e1526451f4b003e6b0008f76f2b818a647ec92e5f82f04f14fc459b64cacdc99ef1609ec7b02f68e2245e96d569bad8b883e6bd807aefafe

Download Submit
C:\BOT\Install.exe

Filesize
103KB

MD5
923c992081b36000ecf91ab112f6fde6

SHA1
1a094ab6c47354a4fa6d0a02ccee00e6513a3697

SHA256
9e3a05b7daf3ece6a1574372bd94f596b8d2c0fa530bafacdd525faccdcc661a

SHA512
b746f26a08ce9fa8e1526451f4b003e6b0008f76f2b818a647ec92e5f82f04f14fc459b64cacdc99ef1609ec7b02f68e2245e96d569bad8b883e6bd807aefafe

Download Submit
C:\UTPVVQEE71UP1QL2\Byxdl.exe

Filesize
103KB

MD5
923c992081b36000ecf91ab112f6fde6

SHA1
1a094ab6c47354a4fa6d0a02ccee00e6513a3697

SHA256
9e3a05b7daf3ece6a1574372bd94f596b8d2c0fa530bafacdd525faccdcc661a

SHA512
b746f26a08ce9fa8e1526451f4b003e6b0008f76f2b818a647ec92e5f82f04f14fc459b64cacdc99ef1609ec7b02f68e2245e96d569bad8b883e6bd807aefafe

Download Submit
\BOT\Install.exe

Filesize
103KB

MD5
923c992081b36000ecf91ab112f6fde6

SHA1
1a094ab6c47354a4fa6d0a02ccee00e6513a3697

SHA256
9e3a05b7daf3ece6a1574372bd94f596b8d2c0fa530bafacdd525faccdcc661a

SHA512
b746f26a08ce9fa8e1526451f4b003e6b0008f76f2b818a647ec92e5f82f04f14fc459b64cacdc99ef1609ec7b02f68e2245e96d569bad8b883e6bd807aefafe

Download Submit
\BOT\Install.exe

Filesize
103KB

MD5
923c992081b36000ecf91ab112f6fde6

SHA1
1a094ab6c47354a4fa6d0a02ccee00e6513a3697

SHA256
9e3a05b7daf3ece6a1574372bd94f596b8d2c0fa530bafacdd525faccdcc661a

SHA512
b746f26a08ce9fa8e1526451f4b003e6b0008f76f2b818a647ec92e5f82f04f14fc459b64cacdc99ef1609ec7b02f68e2245e96d569bad8b883e6bd807aefafe

Download Submit
\BOT\Install.exe

Filesize
103KB

MD5
923c992081b36000ecf91ab112f6fde6

SHA1
1a094ab6c47354a4fa6d0a02ccee00e6513a3697

SHA256
9e3a05b7daf3ece6a1574372bd94f596b8d2c0fa530bafacdd525faccdcc661a

SHA512
b746f26a08ce9fa8e1526451f4b003e6b0008f76f2b818a647ec92e5f82f04f14fc459b64cacdc99ef1609ec7b02f68e2245e96d569bad8b883e6bd807aefafe

Download Submit
\BOT\Install.exe

Filesize
103KB

MD5
923c992081b36000ecf91ab112f6fde6

SHA1
1a094ab6c47354a4fa6d0a02ccee00e6513a3697

SHA256
9e3a05b7daf3ece6a1574372bd94f596b8d2c0fa530bafacdd525faccdcc661a

SHA512
b746f26a08ce9fa8e1526451f4b003e6b0008f76f2b818a647ec92e5f82f04f14fc459b64cacdc99ef1609ec7b02f68e2245e96d569bad8b883e6bd807aefafe

Download Submit
memory/536-65-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/536-66-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/536-79-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/536-74-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/536-75-0x0000000000230000-0x000000000026B000-memory.dmp

Filesize
236KB

Download
memory/536-64-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/536-69-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1520-54-0x0000000074D61000-0x0000000074D63000-memory.dmp

Filesize
8KB

Download
memory/2000-80-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/2000-81-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/2000-82-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/2000-83-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2000-88-0x00000000002F0000-0x000000000032B000-memory.dmp

Filesize
236KB

Download
memory/2000-89-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads