isrstealer | 848f7ba6105563c59127e9bd0eda01bf75271fc1a1570584c98cabf7057bbcf1

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02/12/2024, 02:52

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General

Target
b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe
Size 420KB
Sample241202-dcxeda1ler
SHA256 848f7ba6105563c59127e9bd0eda01bf75271fc1a1570584c98cabf7057bbcf1
MD5 b6702cda80a4d3509d2e55688c05c9b5
SHA1 741c0c7a1132eaa8cbdbfca3ccf525270674dedc
SHA512 be3cf06539bd2ea3653d3f509eaa38e19754430795f6540f914d71808da6938e563fb45d2da8ee936953c42d63ad6786893b572cb523afb257df58b1ce0356a5
SSDEEP 6144:uRwPY8LCpho2fDgej7X0tuNC/Kx9APf8ERgFFvpb1V9qrVwe3ru8cPj:nPY8LCp1h7T/kSFFvjVfMu8cPj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

isrstealer discovery spyware stealer trojan upx

Malware Config

Signatures

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

ISR Stealer payload 2 IoCs

resource	yara_rule
behavioral1/memory/1952-28-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/1952-37-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer

Isrstealer family
isrstealer

Executes dropped EXE 3 IoCs

pid	Process
1512	NIS-2012-Crack.exe
2560	12.exe
1952	12.exe

Loads dropped DLL 12 IoCs

pid	Process
2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe
2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe
2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
2560	12.exe
2560	12.exe
2560	12.exe
2560	12.exe
1952	12.exe
1952	12.exe
1952	12.exe

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 3 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

Credentials from Web Browsers
T1555.003

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1512-39-0x0000000000400000-0x00000000004C3000-memory.dmp	autoit_exe
behavioral1/memory/1512-41-0x0000000000400000-0x00000000004C3000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2560 set thread context of 1952	2560	12.exe	32

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000b00000001202c-3.dat	upx
behavioral1/memory/2372-5-0x0000000002AD0000-0x0000000002B93000-memory.dmp	upx
behavioral1/memory/1512-18-0x0000000000400000-0x00000000004C3000-memory.dmp	upx
behavioral1/memory/1512-39-0x0000000000400000-0x00000000004C3000-memory.dmp	upx
behavioral1/memory/1512-41-0x0000000000400000-0x00000000004C3000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NIS-2012-Crack.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1952	12.exe
1952	12.exe
1952	12.exe
1952	12.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1512	NIS-2012-Crack.exe

Suspicious use of FindShellTrayWindow 19 IoCs

pid	Process
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe

Suspicious use of SendNotifyMessage 19 IoCs

pid	Process
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe
1512	NIS-2012-Crack.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2560	12.exe
1952	12.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 1512	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1512	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1512	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1512	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1512	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1512	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	30
PID 2372 wrote to memory of 1512	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	30
PID 2372 wrote to memory of 2560	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	31
PID 2372 wrote to memory of 2560	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	31
PID 2372 wrote to memory of 2560	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	31
PID 2372 wrote to memory of 2560	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	31
PID 2372 wrote to memory of 2560	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	31
PID 2372 wrote to memory of 2560	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	31
PID 2372 wrote to memory of 2560	2372	b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe	31
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32
PID 2560 wrote to memory of 1952	2560	12.exe	32

C:\Users\Admin\AppData\Local\Temp\b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b6702cda80a4d3509d2e55688c05c9b5_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\NIS-2012-Crack.exe
  "C:\Users\Admin\AppData\Local\Temp\NIS-2012-Crack.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1512
- C:\Users\Admin\AppData\Local\Temp\12.exe
  "C:\Users\Admin\AppData\Local\Temp\12.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2560
- - C:\Users\Admin\AppData\Local\Temp\12.exe
    C:\Users\Admin\AppData\Local\Temp\12.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    PID:1952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

12.exe

Path \Users\Admin\AppData\Local\Temp\12.exe
Size 152KB
SHA256 f6acf42f09869e6b9871782b2b766a5eebf9437ef0289fd323745c165815efb3
MD5 17d4bf5aa5a964763f61de2671f693d5
SHA1 a17dc284c0fa20c60dfc910d08ce87d3bb90a6f5
SHA512 c4c608f573bd0d4c18555107ca2617db2dd02b2cb3611eb427b0d7cf3a32285ebf2bcba38954ec888b13afa4d2e4dadd9b0dc514a269803b6ce3890a5c55ddd1
SSDEEP 3072:tkk+8/cFcomh13skNqvyPYu7DHjgPajLAQEb:tK8/cFcomh/vQADDgynC
MD5 SHA1 SHA512 SSDEEP

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NIS-2012-Crack.exe

Path \Users\Admin\AppData\Local\Temp\NIS-2012-Crack.exe
Size 316KB
SHA256 203ee3b4988fbd6d406c6ae593775609b3e655af0af9fdb3e3c253437d522e0d
MD5 65f08bbfff6f19b13b051d56be4233bc
SHA1 784c0e1b19469cdcf16d3a5f23c76e0b0f32f0ac
SHA512 3dbeb5c8f5943fc0f95aac95831108b850823e3aa9356e47e54fc0fc63bea62a612d300a8ddb4ab6c71dbf37af788d0ee5932fe53bbc93b03fd59e4ae42682ab
SSDEEP 6144:r1db49+rEg024fpLZazEjvE/rbay19tSt4bO2BaDmeBJe59S/Xca:rjkArEN249AyE/rbaMct4bO2/VSL
MD5 SHA1 SHA512 SSDEEP

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memory/1512-20-0x00000000001C0000-0x0000000000283000-memory.dmp

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memory/1512-18-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/1512-39-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/1512-41-0x0000000000400000-0x00000000004C3000-memory.dmp

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memory/1952-28-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/1952-37-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/2372-5-0x0000000002AD0000-0x0000000002B93000-memory.dmp

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