4927f0f8ec0bc609048fac1ee6e449df6c15cb0e872ed9b34423399105ae7d68

Analysis

max time kernel
120s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
13/07/2024, 05:32

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General

Target

527f7517ed8c00cdf1dcb4abb5820d40N.exe
Size

694KB
MD5

527f7517ed8c00cdf1dcb4abb5820d40
SHA1

4b1451f55664cd29947608bf6d6add0ebd25dbfe
SHA256

4927f0f8ec0bc609048fac1ee6e449df6c15cb0e872ed9b34423399105ae7d68
SHA512

ade05d5f36012580e8f4d81dc233e5cafac22be15accf4caf82bbd36ce949512e05f30caf77a5460f671796b3866de28406badf7e212b6625fcf2730cab5e39a
SSDEEP

12288:9n8yN0Mr82KzvFWOC3aEX968PFZSboNML+bgez/65CeO:FPufzv8O0QsFZS0cOgez/6YX

Score

7^/10

discovery persistence spyware stealer

Malware Config

Signatures

Checks computer location settings 2 TTPs 8 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-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	527f7517ed8c00cdf1dcb4abb5820d40N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	Isass.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	527f7517ed8c00cdf1dcb4abb5820d40N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	Isass.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	527f7517ed8c00cdf1dcb4abb5820d40N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	Isass.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	527f7517ed8c00cdf1dcb4abb5820d40N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	Isass.exe

Executes dropped EXE 7 IoCs

pid	Process
3364	Isass.exe
2928	Isass.exe
4532	Isass.exe
1960	Isass.exe
2032	Isass.exe
2024	527f7517ed8c00cdf1dcb4abb5820d40N.exe
1408	527f7517ed8c00cdf1dcb4abb5820d40N.exe

Loads dropped DLL 1 IoCs

pid	Process
1408	527f7517ed8c00cdf1dcb4abb5820d40N.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-1-5-21-1403246978-718555486-3105247137-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	527f7517ed8c00cdf1dcb4abb5820d40N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe"	527f7517ed8c00cdf1dcb4abb5820d40N.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 32 IoCs

pid	Process
4312	527f7517ed8c00cdf1dcb4abb5820d40N.exe
4312	527f7517ed8c00cdf1dcb4abb5820d40N.exe
3364	Isass.exe
3364	Isass.exe
2928	Isass.exe
2928	Isass.exe
2928	Isass.exe
2928	Isass.exe
2928	Isass.exe
2928	Isass.exe
2444	527f7517ed8c00cdf1dcb4abb5820d40N.exe
2444	527f7517ed8c00cdf1dcb4abb5820d40N.exe
4532	Isass.exe
4532	Isass.exe
4532	Isass.exe
4532	Isass.exe
4532	Isass.exe
4532	Isass.exe
4920	527f7517ed8c00cdf1dcb4abb5820d40N.exe
4920	527f7517ed8c00cdf1dcb4abb5820d40N.exe
1960	Isass.exe
1960	Isass.exe
1960	Isass.exe
1960	Isass.exe
1960	Isass.exe
1960	Isass.exe
4788	527f7517ed8c00cdf1dcb4abb5820d40N.exe
4788	527f7517ed8c00cdf1dcb4abb5820d40N.exe
2032	Isass.exe
2032	Isass.exe
2032	Isass.exe
2032	Isass.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 3364	4312	527f7517ed8c00cdf1dcb4abb5820d40N.exe	85
PID 4312 wrote to memory of 3364	4312	527f7517ed8c00cdf1dcb4abb5820d40N.exe	85
PID 4312 wrote to memory of 3364	4312	527f7517ed8c00cdf1dcb4abb5820d40N.exe	85
PID 4312 wrote to memory of 2928	4312	527f7517ed8c00cdf1dcb4abb5820d40N.exe	86
PID 4312 wrote to memory of 2928	4312	527f7517ed8c00cdf1dcb4abb5820d40N.exe	86
PID 4312 wrote to memory of 2928	4312	527f7517ed8c00cdf1dcb4abb5820d40N.exe	86
PID 2928 wrote to memory of 2444	2928	Isass.exe	87
PID 2928 wrote to memory of 2444	2928	Isass.exe	87
PID 2928 wrote to memory of 2444	2928	Isass.exe	87
PID 2444 wrote to memory of 4532	2444	527f7517ed8c00cdf1dcb4abb5820d40N.exe	88
PID 2444 wrote to memory of 4532	2444	527f7517ed8c00cdf1dcb4abb5820d40N.exe	88
PID 2444 wrote to memory of 4532	2444	527f7517ed8c00cdf1dcb4abb5820d40N.exe	88
PID 4532 wrote to memory of 4920	4532	Isass.exe	89
PID 4532 wrote to memory of 4920	4532	Isass.exe	89
PID 4532 wrote to memory of 4920	4532	Isass.exe	89
PID 4920 wrote to memory of 1960	4920	527f7517ed8c00cdf1dcb4abb5820d40N.exe	90
PID 4920 wrote to memory of 1960	4920	527f7517ed8c00cdf1dcb4abb5820d40N.exe	90
PID 4920 wrote to memory of 1960	4920	527f7517ed8c00cdf1dcb4abb5820d40N.exe	90
PID 1960 wrote to memory of 4788	1960	Isass.exe	91
PID 1960 wrote to memory of 4788	1960	Isass.exe	91
PID 1960 wrote to memory of 4788	1960	Isass.exe	91
PID 4788 wrote to memory of 2032	4788	527f7517ed8c00cdf1dcb4abb5820d40N.exe	92
PID 4788 wrote to memory of 2032	4788	527f7517ed8c00cdf1dcb4abb5820d40N.exe	92
PID 4788 wrote to memory of 2032	4788	527f7517ed8c00cdf1dcb4abb5820d40N.exe	92
PID 2032 wrote to memory of 2024	2032	Isass.exe	93
PID 2032 wrote to memory of 2024	2032	Isass.exe	93
PID 2032 wrote to memory of 2024	2032	Isass.exe	93
PID 2024 wrote to memory of 1408	2024	527f7517ed8c00cdf1dcb4abb5820d40N.exe	95
PID 2024 wrote to memory of 1408	2024	527f7517ed8c00cdf1dcb4abb5820d40N.exe	95
PID 2024 wrote to memory of 1408	2024	527f7517ed8c00cdf1dcb4abb5820d40N.exe	95

C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
"C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:3364
- C:\Users\Public\Microsoft Build\Isass.exe
  "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2928
- - C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
    "C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe"
    3⤵
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2444
  - - C:\Users\Public\Microsoft Build\Isass.exe
      "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4532
    - - C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
        
        "C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe"
        5⤵
        Checks computer location settings
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:4920
      - C:\Users\Public\Microsoft Build\Isass.exe
        
        "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
        6⤵
        Checks computer location settings
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:1960
        
        C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
        
        "C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe"
        7⤵
        Checks computer location settings
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:4788
        
        C:\Users\Public\Microsoft Build\Isass.exe
        
        "C:\Users\Public\Microsoft Build\Isass.exe" Tablet C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
        8⤵
        Checks computer location settings
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:2032
        
        C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
        
        "C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe"
        9⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:2024
        
        C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe
        
        "C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe" -burn.unelevated BurnPipe.{3B7F002D-0E98-4129-A350-37145284AA2B} {DCB7C174-A222-42FE-BF79-F84D8A761C45} 2024
        10⤵
        Executes dropped EXE
        Loads dropped DLL
        
        PID:1408

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:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe

Filesize
703KB

MD5
1b62834a404ee3f77347bc9ff1837612

SHA1
8f33982bdeff4ae9014350fcc1f1420113ab7d21

SHA256
375fbd6101fd59b82df3c9b8f0382b65e380dc63ee9b17ca247e3c171d31be67

SHA512
45cb5cba48de623aef1a0355170980aa8e284288d89381b7dcd6c07ce50262b9a5ebd4b902da737153f7d2fc7ececab4ae75fc0e5c6ed3435c301d7c18a095a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\527f7517ed8c00cdf1dcb4abb5820d40N.exe

Filesize
443KB

MD5
39e2f79a5becdc5ffdf17003402c2f82

SHA1
7d2c053093cedf3e4b556628b3d8192275b983a8

SHA256
76583dd73769247f3ee4b1a74dfca1dd9792c74aaa246c324f97201c34ed1a5a

SHA512
2f4fba7ec629275f0cc64587d885ca9c1d8b5fb6e968b98b7307be93d6cf02a56871b8cc04990a3939ccb5b5840cf55b6a2f5093b3ee0c4d4cc72a996e6d343b

Download Submit
C:\Users\Admin\AppData\Local\Temp\{95716cce-fc71-413f-8ad5-56c2892d4b3a}\.ba1\logo.png

Filesize
1KB

MD5
d6bd210f227442b3362493d046cea233

SHA1
ff286ac8370fc655aea0ef35e9cf0bfcb6d698de

SHA256
335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef

SHA512
464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\{95716cce-fc71-413f-8ad5-56c2892d4b3a}\.ba1\wixstdba.dll

Filesize
126KB

MD5
d7bf29763354eda154aad637017b5483

SHA1
dfa7d296bfeecde738ef4708aaabfebec6bc1e48

SHA256
7f5f8fcfd84132579f07e395e65b44e1b031fe01a299bce0e3dd590131c5cb93

SHA512
1c76175732fe68b9b12cb46077daa21e086041adbd65401717a9a1b5f3c516e03c35a90897c22c7281647d6af4a1a5ffb3fbd5706ea376d8f6e574d27396019c

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

Filesize
211KB

MD5
458483e934837c2d747c3a270fecb8c1

SHA1
7c90c31730017719eb2c3827255f684627195170

SHA256
33493d57d56ed06245d2f07e280c1bd8b941f7934d043f54459a24ccdca427f7

SHA512
d32c56f518d4d2c62647c68abd832d607c0660df955fcaa8d6f5e8939e857a74eb5923378e8ffa99bb2e9098fada088a8e06ec7226adfa37ef27b9c8a1f91b7e

Download Submit
memory/1960-21-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2032-34-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2444-16-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2444-11-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2928-12-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/2928-8-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-57-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-53-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-90-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-89-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-9-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/3364-56-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-5-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-71-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-79-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-78-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-62-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-72-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-58-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/3364-63-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/4312-7-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/4312-4-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/4532-15-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/4532-18-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/4788-23-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download
memory/4920-20-0x0000000000400000-0x00000000016A8000-memory.dmp

Filesize
18.7MB

Download