6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d

Analysis

max time kernel
140s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 13:23

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General

Target

6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
Size

882KB
MD5

4226dccf4c385f70ce3801c7da731499
SHA1

d28c10fda1e163fd7c9dfe6c7175f076d3638e81
SHA256

6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d
SHA512

10ab0e6debba6f214865a8974908f9995da9fd88a31c23f96082cbfc27521084cd9c8be3abbf7bfa77f08280d78814c1524e64334412218d3466ff6e4de34ad9
SSDEEP

24576:vPuZxz0fDjymk4HM5yJlEEM2gOdMvk1ts:eDWDy4FKEM2rdMvsts

Score

9^/10

discovery persistence spyware stealer

Malware Config

Signatures

UPX dump on OEP (original entry point) 22 IoCs

resource	yara_rule
behavioral1/files/0x0035000000015d42-1.dat	UPX
behavioral1/memory/2960-8-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-16-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2960-13-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2156-18-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/3020-20-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2640-27-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-79-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-80-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-83-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-84-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-91-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-92-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-100-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-101-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-107-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-108-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-116-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-117-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-129-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-130-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX
behavioral1/memory/2064-143-0x0000000000400000-0x00000000016A8E52-memory.dmp	UPX

Executes dropped EXE 5 IoCs

pid	Process
2064	Isass.exe
2156	Isass.exe
2640	Isass.exe
2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
3024	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe

Loads dropped DLL 11 IoCs

pid	Process
2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
3020	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
2640	Isass.exe
2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
3024	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
2064	Isass.exe
2064	Isass.exe
2064	Isass.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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
2064	Isass.exe
2156	Isass.exe
2156	Isass.exe
2156	Isass.exe
3020	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
2640	Isass.exe
2640	Isass.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 2064	2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	28
PID 2960 wrote to memory of 2064	2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	28
PID 2960 wrote to memory of 2064	2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	28
PID 2960 wrote to memory of 2064	2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	28
PID 2960 wrote to memory of 2156	2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	29
PID 2960 wrote to memory of 2156	2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	29
PID 2960 wrote to memory of 2156	2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	29
PID 2960 wrote to memory of 2156	2960	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	29
PID 2156 wrote to memory of 3020	2156	Isass.exe	30
PID 2156 wrote to memory of 3020	2156	Isass.exe	30
PID 2156 wrote to memory of 3020	2156	Isass.exe	30
PID 2156 wrote to memory of 3020	2156	Isass.exe	30
PID 3020 wrote to memory of 2640	3020	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	31
PID 3020 wrote to memory of 2640	3020	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	31
PID 3020 wrote to memory of 2640	3020	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	31
PID 3020 wrote to memory of 2640	3020	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	31
PID 2640 wrote to memory of 2572	2640	Isass.exe	32
PID 2640 wrote to memory of 2572	2640	Isass.exe	32
PID 2640 wrote to memory of 2572	2640	Isass.exe	32
PID 2640 wrote to memory of 2572	2640	Isass.exe	32
PID 2640 wrote to memory of 2572	2640	Isass.exe	32
PID 2640 wrote to memory of 2572	2640	Isass.exe	32
PID 2640 wrote to memory of 2572	2640	Isass.exe	32
PID 2572 wrote to memory of 3024	2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	33
PID 2572 wrote to memory of 3024	2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	33
PID 2572 wrote to memory of 3024	2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	33
PID 2572 wrote to memory of 3024	2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	33
PID 2572 wrote to memory of 3024	2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	33
PID 2572 wrote to memory of 3024	2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	33
PID 2572 wrote to memory of 3024	2572	6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe	33

C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
"C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:2064
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2156
- - C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
    "C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe"
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3020
  - - C:\Users\Public\Microsoft Build\Isass.exe
      "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2640
    - - C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
        
        "C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:2572
      - C:\Windows\Temp\{552A2AB7-A36A-478D-BDC9-70B342958FCC}\.cr\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe
        
        "C:\Windows\Temp\{552A2AB7-A36A-478D-BDC9-70B342958FCC}\.cr\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe" -burn.filehandle.attached=180 -burn.filehandle.self=188
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        
        PID:3024

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

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

C:\Windows\Temp\{2805AD23-5A28-4A1E-A24A-E8D5C8137E68}\.ba\logo.png

Filesize
1KB

MD5
d6bd210f227442b3362493d046cea233

SHA1
ff286ac8370fc655aea0ef35e9cf0bfcb6d698de

SHA256
335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef

SHA512
464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b

Download Submit
\Users\Admin\AppData\Local\Temp\6ea5906218f8eaa43b3478b278b960b80c4ab1822b01ebb37bfa7aa99ccb5e9d.exe

Filesize
635KB

MD5
b73be38096eddc4d427fbbfdd8cf15bd

SHA1
534f605fd43cc7089e448e5fa1b1a2d56de14779

SHA256
ab1164dcaf6c7d7d4905881f332a7b6f854be46e36b860c44d9eedc96ab6607a

SHA512
5af779926d344bc7c4140725f90cddad5eb778f5ca4856d5a31a6084424964d205638815eab4454e0ea34ea56fafca19fadd1eb2779dc6b7f277e4e4ce4b1603

Download Submit
\Users\Public\Microsoft Build\Isass.exe

Filesize
216KB

MD5
a57ce9b79949479fd2e3b36685bdcc4b

SHA1
016773da1b14df7015ffddd6b4347c45bc942c50

SHA256
e4579444998ed22b9f1b36f7ddf2e9d4614f1b39a5ce706656b52d02a5c1bda9

SHA512
fc1e43a739fc54fdb31bc31b979822028395ea7ed1815b25a841bec8ca0e5fabfbec5355dcd6c90fc369e28e2ada2311ebca01b7f476ea29b58e2fc26526756d

Download Submit
\Windows\Temp\{2805AD23-5A28-4A1E-A24A-E8D5C8137E68}\.ba\wixstdba.dll

Filesize
191KB

MD5
eab9caf4277829abdf6223ec1efa0edd

SHA1
74862ecf349a9bedd32699f2a7a4e00b4727543d

SHA256
a4efbdb2ce55788ffe92a244cb775efd475526ef5b61ad78de2bcdfaddac7041

SHA512
45b15ade68e0a90ea7300aeb6dca9bc9e347a63dba5ce72a635957564d1bdf0b1584a5e34191916498850fc7b3b7ecfbcbfcb246b39dbf59d47f66bc825c6fd2

Download Submit
memory/2064-107-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-101-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-17-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2064-143-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-130-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-129-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-117-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-16-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-116-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-79-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-80-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-83-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-84-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-91-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-92-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-100-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2064-108-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2156-18-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2640-27-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2960-8-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/2960-15-0x00000000045F0000-0x0000000005899000-memory.dmp

Filesize
18.7MB

Download
memory/2960-10-0x00000000045F0000-0x0000000005899000-memory.dmp

Filesize
18.7MB

Download
memory/2960-13-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download
memory/3020-20-0x0000000000400000-0x00000000016A8E52-memory.dmp

Filesize
18.7MB

Download