isrstealer | 5809a144d1acd6c9881b0c3cdf20d15628d4d0d8e56f252f7acf326bcfc921cf

General

Target

1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
Size

131KB
MD5

1071976c7372ca69ee12be54eaf5c8dc
SHA1

2e18664e7590103b616aded9dbe4f9f61c6a6f49
SHA256

5809a144d1acd6c9881b0c3cdf20d15628d4d0d8e56f252f7acf326bcfc921cf
SHA512

120ae9546e575b2c30a20b46a831fd36b30282706a387037f18264aebf4f879c5c4fd0c8ccb81fcde6b0319bc256a7c005483368806463bbfe4476f9f28a6455
SSDEEP

1536:pfwMnQ4JMtzAKDX1fVY2xT5R0cYhouL3rhHQt027revscd2GEyJ7DB0GtZ:5ua6CxWuTrhHy0SrlOEi7l0GtZ

Score

10^/10

isrstealer spyware stealer trojan

Malware Config

Signatures

ISR Stealer
ISR Stealer is a modified version of Hackhound Stealer written in visual basic.
trojan stealer isrstealer

ISR Stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5040-3-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/5040-5-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral2/memory/5040-10-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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

Suspicious use of SetThreadContext 1 IoCs

Processes:

1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

description	pid	process	target process
PID 1532 set thread context of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

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

System Information Discovery
T1082

Modifies registry class 3 IoCs

Processes:

1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Codepage	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\MIME\Database	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Charset	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

pid	process
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

pid process

1532 1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040 1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

pid	process
1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
5040	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

description	pid	process	target process
PID 1532 wrote to memory of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
PID 1532 wrote to memory of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
PID 1532 wrote to memory of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
PID 1532 wrote to memory of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
PID 1532 wrote to memory of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
PID 1532 wrote to memory of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
PID 1532 wrote to memory of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
PID 1532 wrote to memory of 5040	1532	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe	1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1532
- C:\Users\Admin\AppData\Local\Temp\1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\1071976c7372ca69ee12be54eaf5c8dc_JaffaCakes118.exe
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:5040

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4612,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=1300 /prefetch:8
1⤵
PID:3048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1532-0-0x0000000000400000-0x0000000000424200-memory.dmp

Filesize
144KB

Download
memory/1532-8-0x0000000000400000-0x0000000000424200-memory.dmp

Filesize
144KB

Download
memory/5040-3-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5040-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5040-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads