isrstealer | 77eb02d972ac37ee02210a3ba0ae73a0f2e904e6c40aa46507354aa6e9ed46ed

General

Target

00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
Size

284KB
MD5

00ea206f316981790d5eedc6aaf23d00
SHA1

b9c553609b00b3b626d55505d3a0d112672d43b6
SHA256

77eb02d972ac37ee02210a3ba0ae73a0f2e904e6c40aa46507354aa6e9ed46ed
SHA512

08c20d978527f4e943616e83282f01b295c300134a737c6022c2ccc967fea227c820eded3780213fe6580cb3d93976ad4d493dbb1ab420b2b1b68c27f4561a2e
SSDEEP

6144:RT74IZNWcMeBNTlJV/oHWFQnx85FfUUE8rMrsqpyaQ74dtI:jLBbvoHVxMJUUE8rMrsqQrMdm

Score

10^/10

isrstealer 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 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4000-2-0x0000000000400000-0x0000000000432000-memory.dmp	family_isrstealer
behavioral2/memory/4000-4-0x0000000000400000-0x0000000000432000-memory.dmp	family_isrstealer
behavioral2/memory/4000-16-0x0000000000400000-0x0000000000432000-memory.dmp	family_isrstealer

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

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/640-7-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/640-9-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/640-10-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/640-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/640-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx

Suspicious use of SetThreadContext 2 IoCs

Processes:

00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

description	pid	process	target process
PID 3248 set thread context of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 set thread context of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

pid process

3248 00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
4000 00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

pid	process
3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3248
- C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4000
- - C:\Users\Admin\AppData\Local\Temp\00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
    /scomma "C:\Users\Admin\AppData\Local\Temp\tmp.ini"
    3⤵
    PID:640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp.ini

Filesize
5B

MD5
d1ea279fb5559c020a1b4137dc4de237

SHA1
db6f8988af46b56216a6f0daf95ab8c9bdb57400

SHA256
fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

SHA512
720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

Download Submit
memory/640-7-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/640-9-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/640-10-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/640-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/640-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4000-2-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4000-4-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4000-16-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

description	pid	process	target process
PID 3248 wrote to memory of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 3248 wrote to memory of 4000	3248	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe
PID 4000 wrote to memory of 640	4000	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe	00ea206f316981790d5eedc6aaf23d00_JaffaCakes118.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads