isrstealer | 9c81b114969a55170947cd64b98ab0734b28759cabba7fb14fc76bd0985ff410

General

Target

918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe
Size

240KB
MD5

918dbc6feea593f0d8b81e14ea931a30
SHA1

cacdd75ffe41ef8e24d6ace4edcb4491dadfa366
SHA256

9c81b114969a55170947cd64b98ab0734b28759cabba7fb14fc76bd0985ff410
SHA512

dc14cba34ddd0832f79b39c505322439af73252072b2a47c5afb34c0c6e75439417f9b0ed687e26722d7fefff5d7f6ef501133ac1c269337906d5c148ca239a6
SSDEEP

3072:ICL9ora4uBYKrat7G49IIDMxizCB8Fp/vG7r+65p4S6ypFZsLXD+dIKREzLa2G8P:ErtvPrM7b5p4StOX6dIKREzLOagj4

Score

10^/10

isrstealer discovery 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 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2460-7-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2460-11-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2460-16-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer
behavioral1/memory/2460-18-0x0000000000400000-0x0000000000414000-memory.dmp	family_isrstealer

Suspicious use of SetThreadContext 1 IoCs

Processes:

918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1716 set thread context of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exeAppLaunch.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

AppLaunch.exe

pid	Process
2460	AppLaunch.exe
2460	AppLaunch.exe
2460	AppLaunch.exe
2460	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe

description	pid	Process
Token: SeDebugPrivilege	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

AppLaunch.exe

pid	Process
2460	AppLaunch.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30
PID 1716 wrote to memory of 2460	1716	918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\918dbc6feea593f0d8b81e14ea931a30_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1716-0-0x0000000074051000-0x0000000074052000-memory.dmp

Filesize
4KB

Download
memory/1716-1-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/1716-2-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/1716-17-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2460-3-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2460-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2460-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2460-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2460-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2460-16-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2460-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads