b962460234df921e94fb18cfdb308141b7d6a75304089a6aa02be100a0a083c3

Analysis

max time kernel
145s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
24/12/2023, 20:24

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General

Target

10b21af4da8e704772b3a68bf4195f84.exe
Size

125KB
MD5

10b21af4da8e704772b3a68bf4195f84
SHA1

df782b72c2e14f73fb7fdf3bcf6404b1285ee099
SHA256

b962460234df921e94fb18cfdb308141b7d6a75304089a6aa02be100a0a083c3
SHA512

85c571b19fadc731210469981abce226c2de02aeb5123cc5d31e50443cff6e498ae53ad1826346105f268a29b37a42d5e11eca33cbadee6d6194eb577f051b81
SSDEEP

3072:vpDBAKMk0gAN4lgOjCFQ2nf6bdtUNhomcN:vfMPgwIyNSb/Yho

Score

7^/10

aspackv2 persistence

Malware Config

Signatures

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0007000000023204-5.dat	aspack_v212_v242

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	10b21af4da8e704772b3a68bf4195f84.exe

Executes dropped EXE 1 IoCs

pid	Process
4112	NetMeeting.exe

Loads dropped DLL 3 IoCs

pid	Process
916	rundll32.exe
764	rundll32.exe
2508	10b21af4da8e704772b3a68bf4195f84.exe

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Hardware Profile = "C:\\Windows\\system32\\hxdef.exe"	10b21af4da8e704772b3a68bf4195f84.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VFW Encoder/Decoder Settings = "RUNDLL32.EXE MSSIGN30.DLL ondll_reg"	10b21af4da8e704772b3a68bf4195f84.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft NetMeeting Associates, Inc. = "NetMeeting.exe"	10b21af4da8e704772b3a68bf4195f84.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\runServices\SystemTra = "C:\\Windows\\SysTra.EXE"	10b21af4da8e704772b3a68bf4195f84.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Shell Extension = "C:\\Windows\\system32\\spollsv.exe"	NetMeeting.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Protected Storage = "RUNDLL32.EXE MSSIGN30.DLL ondll_reg"	rundll32.exe

Enumerates connected drives 3 TTPs 21 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)	\??\T:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\E:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\K:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\R:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\S:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\U:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\V:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\I:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\M:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\P:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\Q:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\Z:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\G:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\N:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\O:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\W:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\X:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\Y:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\H:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\J:	10b21af4da8e704772b3a68bf4195f84.exe
File opened (read-only)	\??\L:	10b21af4da8e704772b3a68bf4195f84.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\AUTORUN.INF	10b21af4da8e704772b3a68bf4195f84.exe
File opened for modification	C:\AUTORUN.INF	10b21af4da8e704772b3a68bf4195f84.exe

Drops file in System32 directory 12 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\hxdef.exe	10b21af4da8e704772b3a68bf4195f84.exe
File opened for modification	C:\Windows\SysWOW64\hxdef.exe	10b21af4da8e704772b3a68bf4195f84.exe
File created	C:\Windows\SysWOW64\IEXPLORE.EXE	10b21af4da8e704772b3a68bf4195f84.exe
File created	C:\Windows\SysWOW64\msjdbc11.dll	10b21af4da8e704772b3a68bf4195f84.exe
File opened for modification	C:\Windows\SysWOW64\spollsv.exe	NetMeeting.exe
File created	C:\Windows\SysWOW64\RAVMOND.exe	10b21af4da8e704772b3a68bf4195f84.exe
File created	C:\Windows\SysWOW64\kernel66.dll	10b21af4da8e704772b3a68bf4195f84.exe
File opened for modification	C:\Windows\SysWOW64\kernel66.dll	10b21af4da8e704772b3a68bf4195f84.exe
File created	C:\Windows\SysWOW64\ODBC16.dll	10b21af4da8e704772b3a68bf4195f84.exe
File created	C:\Windows\SysWOW64\MSSIGN30.DLL	10b21af4da8e704772b3a68bf4195f84.exe
File created	C:\Windows\SysWOW64\NetMeeting.exe	10b21af4da8e704772b3a68bf4195f84.exe
File created	C:\Windows\SysWOW64\spollsv.exe	NetMeeting.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SYSTRA.EXE	10b21af4da8e704772b3a68bf4195f84.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1928	2508	WerFault.exe	67

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2508	10b21af4da8e704772b3a68bf4195f84.exe
2508	10b21af4da8e704772b3a68bf4195f84.exe
2508	10b21af4da8e704772b3a68bf4195f84.exe
2508	10b21af4da8e704772b3a68bf4195f84.exe
764	rundll32.exe
764	rundll32.exe
2508	10b21af4da8e704772b3a68bf4195f84.exe
2508	10b21af4da8e704772b3a68bf4195f84.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	764	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4112	NetMeeting.exe
4112	NetMeeting.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 3344	2508	10b21af4da8e704772b3a68bf4195f84.exe	89
PID 2508 wrote to memory of 3344	2508	10b21af4da8e704772b3a68bf4195f84.exe	89
PID 2508 wrote to memory of 3344	2508	10b21af4da8e704772b3a68bf4195f84.exe	89
PID 3344 wrote to memory of 4444	3344	net.exe	91
PID 3344 wrote to memory of 4444	3344	net.exe	91
PID 3344 wrote to memory of 4444	3344	net.exe	91
PID 2508 wrote to memory of 4316	2508	10b21af4da8e704772b3a68bf4195f84.exe	92
PID 2508 wrote to memory of 4316	2508	10b21af4da8e704772b3a68bf4195f84.exe	92
PID 2508 wrote to memory of 4316	2508	10b21af4da8e704772b3a68bf4195f84.exe	92
PID 4316 wrote to memory of 5084	4316	net.exe	95
PID 4316 wrote to memory of 5084	4316	net.exe	95
PID 4316 wrote to memory of 5084	4316	net.exe	95
PID 2508 wrote to memory of 712	2508	10b21af4da8e704772b3a68bf4195f84.exe	96
PID 2508 wrote to memory of 712	2508	10b21af4da8e704772b3a68bf4195f84.exe	96
PID 2508 wrote to memory of 712	2508	10b21af4da8e704772b3a68bf4195f84.exe	96
PID 712 wrote to memory of 2752	712	net.exe	98
PID 712 wrote to memory of 2752	712	net.exe	98
PID 712 wrote to memory of 2752	712	net.exe	98
PID 2508 wrote to memory of 4112	2508	10b21af4da8e704772b3a68bf4195f84.exe	104
PID 2508 wrote to memory of 4112	2508	10b21af4da8e704772b3a68bf4195f84.exe	104
PID 2508 wrote to memory of 4112	2508	10b21af4da8e704772b3a68bf4195f84.exe	104
PID 2508 wrote to memory of 916	2508	10b21af4da8e704772b3a68bf4195f84.exe	103
PID 2508 wrote to memory of 916	2508	10b21af4da8e704772b3a68bf4195f84.exe	103
PID 2508 wrote to memory of 916	2508	10b21af4da8e704772b3a68bf4195f84.exe	103
PID 2508 wrote to memory of 764	2508	10b21af4da8e704772b3a68bf4195f84.exe	101
PID 2508 wrote to memory of 764	2508	10b21af4da8e704772b3a68bf4195f84.exe	101
PID 2508 wrote to memory of 764	2508	10b21af4da8e704772b3a68bf4195f84.exe	101
PID 764 wrote to memory of 2508	764	rundll32.exe	67
PID 764 wrote to memory of 2508	764	rundll32.exe	67

C:\Users\Admin\AppData\Local\Temp\10b21af4da8e704772b3a68bf4195f84.exe
"C:\Users\Admin\AppData\Local\Temp\10b21af4da8e704772b3a68bf4195f84.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "Symantec AntiVirus Client"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3344
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "Symantec AntiVirus Client"
    3⤵
    PID:4444
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "Symantec AntiVirus Server"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4316
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "Symantec AntiVirus Server"
    3⤵
    PID:5084
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "Rising Realtime Monitor Service"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:712
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "Rising Realtime Monitor Service"
    3⤵
    PID:2752
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" ODBC16.dll ondll_reg
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:764
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" ODBC16.dll ondll_install
  2⤵
  - Loads dropped DLL
  PID:916
- C:\Windows\SysWOW64\NetMeeting.exe
  "C:\Windows\System32\NetMeeting.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  PID:4112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 2128
  2⤵
  - Program crash
  PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 2508 -ip 2508
1⤵
PID:4056

C:\Windows\system32\WerFault.exe
"C:\Windows\system32\WerFault.exe" -k -lc NDIS NDIS-20231225-1522.dmp
1⤵
PID:2508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\NetMeeting.exe

Filesize
60KB

MD5
068ab7aff165eaf4a6b5d1f5efc5779d

SHA1
73a804514776dfd459eeff5fe00a0d6fab0af268

SHA256
c0c8e4b525a79261a08fe87507f0c0e3bbe4b8f5e78c9a8d4b26bba4077d2708

SHA512
6053cd554427ebef13a7d405309b9ce3d675d81e389632e80b28bac7b0e1e7dc1913fee8dcfbc624ed091d62eeab51ad41d9124463548be9d32b8d33911b50ee

Download Submit
C:\Windows\SysWOW64\ODBC16.dll

Filesize
52KB

MD5
7d72bf5a3f74ddeb5a7a384a1f73be80

SHA1
2c7041e8b997996720772ed15ec5e978e3074795

SHA256
1e69e7b29420d2fc935664a76ee7015c53d8155c8d624258c30d4ed17a2bebff

SHA512
0652753b4fd5a1bad738b2299f00d0231c0a136c670278299e409624c6ed423ab66e0400814e20ffbbca87c75d60f1c893819c02cde372f99b584eba3d5c72d7

Download Submit
C:\Windows\SysWOW64\kernel66.dll

Filesize
125KB

MD5
10b21af4da8e704772b3a68bf4195f84

SHA1
df782b72c2e14f73fb7fdf3bcf6404b1285ee099

SHA256
b962460234df921e94fb18cfdb308141b7d6a75304089a6aa02be100a0a083c3

SHA512
85c571b19fadc731210469981abce226c2de02aeb5123cc5d31e50443cff6e498ae53ad1826346105f268a29b37a42d5e11eca33cbadee6d6194eb577f051b81

Download Submit
memory/764-30-0x0000000010000000-0x0000000010026000-memory.dmp

Filesize
152KB

Download
memory/916-27-0x0000000010000000-0x0000000010026000-memory.dmp

Filesize
152KB

Download
memory/2508-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2508-31-0x0000000003E90000-0x0000000003E9A000-memory.dmp

Filesize
40KB

Download
memory/2508-34-0x0000000010000000-0x0000000010026000-memory.dmp

Filesize
152KB

Download
memory/2508-35-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download