3ea2111fa99eddac525f39c8fcdf73ebcd33a49ec43ef0037a7a53f50b6dba88

Analysis

max time kernel
147s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 10:11

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General

Target
file.htm .exe
Size 142KB
Sample240308-l7274scd74
SHA256 6c9957a4dd3263a19224fbff886d3693b4ef0d2e58b29a1c588725d85486b599
MD5 aa3b7fb0e958ba0537cfda8472167ba8
SHA1 44db25090286215986de07c220ff05ef09b08357
SHA512 2664c58d57b013e617d5f74ccc03c6ef742fdd085c5e59dbc6b96e621984c132594f942946db3b2f1041dad39618bd89e55cd15d4edf43798445e542524efef9
SSDEEP 3072:/ETDxoetXclixyIVqGxda7KYW+RS1uuNVo0lL3+S0tf5BWUKtYfmjSB:MTD+lSyIVqReYfRMuuNChtfImfj
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

aspackv2 persistence spyware stealer

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/0x0006000000023214-5.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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	file.htm .exe

Executes dropped EXE 2 IoCs

pid	Process
4584	Exploier.exe
4384	iexplorer.exe

Loads dropped DLL 3 IoCs

pid	Process
3852	rundll32.exe
2932	rundll32.exe
1340	file.htm .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
T1552.001

Adds Run key to start application 2 TTPs 7 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\VFW Encoder/Decoder Settings = "RUNDLL32.EXE MSSIGN30.DLL ondll_reg"	file.htm .exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Associates, Inc. = "iexplorer.exe"	file.htm .exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\runServices\SystemTra = "C:\\Windows\\CdPlay.EXE"	file.htm .exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Shell Extension = "C:\\Windows\\system32\\spollsv.exe"	iexplorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Protected Storage = "RUNDLL32.EXE MSSIGN30.DLL ondll_reg"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinHelp = "C:\\Windows\\system32\\TkBellExe.exe"	file.htm .exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Hardware Profile = "C:\\Windows\\system32\\hxdef.exe"	file.htm .exe

Enumerates connected drives 3 TTPs 23 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)	\??\G:	file.htm .exe
File opened (read-only)	\??\H:	file.htm .exe
File opened (read-only)	\??\N:	file.htm .exe
File opened (read-only)	\??\T:	file.htm .exe
File opened (read-only)	\??\X:	file.htm .exe
File opened (read-only)	\??\A:	Exploier.exe
File opened (read-only)	\??\B:	Exploier.exe
File opened (read-only)	\??\L:	file.htm .exe
File opened (read-only)	\??\P:	file.htm .exe
File opened (read-only)	\??\S:	file.htm .exe
File opened (read-only)	\??\U:	file.htm .exe
File opened (read-only)	\??\W:	file.htm .exe
File opened (read-only)	\??\R:	file.htm .exe
File opened (read-only)	\??\V:	file.htm .exe
File opened (read-only)	\??\Z:	file.htm .exe
File opened (read-only)	\??\O:	file.htm .exe
File opened (read-only)	\??\Q:	file.htm .exe
File opened (read-only)	\??\Y:	file.htm .exe
File opened (read-only)	\??\E:	file.htm .exe
File opened (read-only)	\??\I:	file.htm .exe
File opened (read-only)	\??\J:	file.htm .exe
File opened (read-only)	\??\K:	file.htm .exe
File opened (read-only)	\??\M:	file.htm .exe

Drops file in System32 directory 16 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\RAVMOND.exe	file.htm .exe
File created	C:\Windows\SysWOW64\msjdbc11.dll	file.htm .exe
File created	C:\Windows\SysWOW64\MSSIGN30.DLL	file.htm .exe
File created	C:\Windows\SysWOW64\IEXPLORE.EXE	file.htm .exe
File created	C:\Windows\SysWOW64\iexplorer.exe	file.htm .exe
File created	C:\Windows\SysWOW64\spollsv.exe	iexplorer.exe
File created	C:\Windows\SysWOW64\win~.uuu	Exploier.exe
File created	C:\Windows\SysWOW64\TkBellExe.exe	file.htm .exe
File opened for modification	C:\Windows\SysWOW64\TkBellExe.exe	file.htm .exe
File created	C:\Windows\SysWOW64\hxdef.exe	file.htm .exe
File created	C:\Windows\SysWOW64\ODBC16.dll	file.htm .exe
File opened for modification	C:\Windows\SysWOW64\win~.uuu	Exploier.exe
File created	C:\Windows\SysWOW64\Update_OB.exe	file.htm .exe
File created	C:\Windows\SysWOW64\kernel66.dll	file.htm .exe
File opened for modification	C:\Windows\SysWOW64\kernel66.dll	file.htm .exe
File opened for modification	C:\Windows\SysWOW64\spollsv.exe	iexplorer.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Exploier.exe	file.htm .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
3684	1340	WerFault.exe	84

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "Update_OB.exe %1"	file.htm .exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1340	file.htm .exe
1340	file.htm .exe
1340	file.htm .exe
1340	file.htm .exe
2932	rundll32.exe
2932	rundll32.exe
1340	file.htm .exe
1340	file.htm .exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2932	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4384	iexplorer.exe
4384	iexplorer.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 3748	1340	file.htm .exe	85
PID 1340 wrote to memory of 3748	1340	file.htm .exe	85
PID 1340 wrote to memory of 3748	1340	file.htm .exe	85
PID 3748 wrote to memory of 3948	3748	net.exe	87
PID 3748 wrote to memory of 3948	3748	net.exe	87
PID 3748 wrote to memory of 3948	3748	net.exe	87
PID 1340 wrote to memory of 3792	1340	file.htm .exe	88
PID 1340 wrote to memory of 3792	1340	file.htm .exe	88
PID 1340 wrote to memory of 3792	1340	file.htm .exe	88
PID 1340 wrote to memory of 2216	1340	file.htm .exe	90
PID 1340 wrote to memory of 2216	1340	file.htm .exe	90
PID 1340 wrote to memory of 2216	1340	file.htm .exe	90
PID 3792 wrote to memory of 2808	3792	net.exe	92
PID 3792 wrote to memory of 2808	3792	net.exe	92
PID 3792 wrote to memory of 2808	3792	net.exe	92
PID 2216 wrote to memory of 3712	2216	net.exe	93
PID 2216 wrote to memory of 3712	2216	net.exe	93
PID 2216 wrote to memory of 3712	2216	net.exe	93
PID 1340 wrote to memory of 4584	1340	file.htm .exe	95
PID 1340 wrote to memory of 4584	1340	file.htm .exe	95
PID 1340 wrote to memory of 4584	1340	file.htm .exe	95
PID 1340 wrote to memory of 4384	1340	file.htm .exe	96
PID 1340 wrote to memory of 4384	1340	file.htm .exe	96
PID 1340 wrote to memory of 4384	1340	file.htm .exe	96
PID 1340 wrote to memory of 3852	1340	file.htm .exe	97
PID 1340 wrote to memory of 3852	1340	file.htm .exe	97
PID 1340 wrote to memory of 3852	1340	file.htm .exe	97
PID 1340 wrote to memory of 2932	1340	file.htm .exe	98
PID 1340 wrote to memory of 2932	1340	file.htm .exe	98
PID 1340 wrote to memory of 2932	1340	file.htm .exe	98
PID 2932 wrote to memory of 1340	2932	rundll32.exe	84
PID 2932 wrote to memory of 1340	2932	rundll32.exe	84

C:\Users\Admin\AppData\Local\Temp\file.htm .exe
"C:\Users\Admin\AppData\Local\Temp\file.htm .exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "Symantec AntiVirus Client"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3748
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "Symantec AntiVirus Client"
    3⤵
    PID:3948
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "Symantec AntiVirus Server"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3792
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "Symantec AntiVirus Server"
    3⤵
    PID:2808
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "Rising Realtime Monitor Service"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2216
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "Rising Realtime Monitor Service"
    3⤵
    PID:3712
- C:\Windows\Exploier.exe
  "C:\Windows\Exploier.exe"
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Drops file in System32 directory
  PID:4584
- C:\Windows\SysWOW64\iexplorer.exe
  "C:\Windows\System32\iexplorer.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  PID:4384
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\System32\rundll32.exe" ODBC16.dll ondll_install
  2⤵
  - Loads dropped DLL
  PID:3852
- 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:2932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1716
  2⤵
  - Program crash
  PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1340 -ip 1340
1⤵
PID:2540

C:\Windows\system32\WerFault.exe
"C:\Windows\system32\WerFault.exe" -k -lc NDIS NDIS-20240308-1012.dmp
1⤵
PID:5036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Exploier.exe

Path C:\Windows\Exploier.exe
Size 56KB
SHA256 20aee3a893f8ddbb2d046c88662ec3da40dc979ca1abbf03abc1c775a446bfd7
MD5 7c6bbb10f8ad2e567031542d1f75612e
SHA1 756ec7d8ff11ebe2dbae7df4290fc44eb31ed949
SHA512 4a9f8c712a26adfa7ed0fc7f6e14c297a36418c17964b03f1c5973f0dda7abc07340db0faaa2df2f6470f350fe4990c2d5bf63374f1d145c798ee192b99d38dc
SSDEEP 768:v+gAF4OrFJJooafO/071iHzb9wjYSJ4XKoSkBFTg:vhAF42JafOsZi39wUCoBf
MD5 SHA1 SHA512 SSDEEP

Submit Download

IEXPLORE.EXE

Path C:\Windows\SysWOW64\IEXPLORE.EXE
Size 142KB
SHA256 6c9957a4dd3263a19224fbff886d3693b4ef0d2e58b29a1c588725d85486b599
MD5 aa3b7fb0e958ba0537cfda8472167ba8
SHA1 44db25090286215986de07c220ff05ef09b08357
SHA512 2664c58d57b013e617d5f74ccc03c6ef742fdd085c5e59dbc6b96e621984c132594f942946db3b2f1041dad39618bd89e55cd15d4edf43798445e542524efef9
SSDEEP 3072:/ETDxoetXclixyIVqGxda7KYW+RS1uuNVo0lL3+S0tf5BWUKtYfmjSB:MTD+lSyIVqReYfRMuuNChtfImfj
MD5 SHA1 SHA512 SSDEEP

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ODBC16.dll

Path C:\Windows\SysWOW64\ODBC16.dll
Size 52KB
SHA256 1e69e7b29420d2fc935664a76ee7015c53d8155c8d624258c30d4ed17a2bebff
MD5 7d72bf5a3f74ddeb5a7a384a1f73be80
SHA1 2c7041e8b997996720772ed15ec5e978e3074795
SHA512 0652753b4fd5a1bad738b2299f00d0231c0a136c670278299e409624c6ed423ab66e0400814e20ffbbca87c75d60f1c893819c02cde372f99b584eba3d5c72d7
SSDEEP 768:q0nHelNnFjlydMePF/AuQxMbK7ekDD4kBnNs4fmvKI9xSyzohgXz085SxXMb1nY:qy+znZ4Z/dQMFyZBnFeSIbXo+jWG
MD5 SHA1 SHA512 SSDEEP

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iexplorer.exe

Path C:\Windows\SysWOW64\iexplorer.exe
Size 60KB
SHA256 c0c8e4b525a79261a08fe87507f0c0e3bbe4b8f5e78c9a8d4b26bba4077d2708
MD5 068ab7aff165eaf4a6b5d1f5efc5779d
SHA1 73a804514776dfd459eeff5fe00a0d6fab0af268
SHA512 6053cd554427ebef13a7d405309b9ce3d675d81e389632e80b28bac7b0e1e7dc1913fee8dcfbc624ed091d62eeab51ad41d9124463548be9d32b8d33911b50ee
SSDEEP 1536:Y1e7uiVjswW7JT52Kcw9ZW48hbzbji2nhW:Y1liVkKOgzbji2nhW
MD5 SHA1 SHA512 SSDEEP

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memory/1340-34-0x0000000003450000-0x000000000345A000-memory.dmp

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memory/1340-37-0x0000000010000000-0x0000000010026000-memory.dmp

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memory/1340-38-0x0000000000400000-0x0000000000459000-memory.dmp

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memory/2932-33-0x0000000010000000-0x0000000010026000-memory.dmp

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memory/3852-31-0x0000000010000000-0x0000000010026000-memory.dmp

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