blustealer | 27f824a80ebdad6b53d01f487ecb17616c0a2a9d9700ca3be3b1c1a24cdc1f71

General

Target

2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe
Size

1.3MB
MD5

2e6372abf5c58a233b273eb612950567
SHA1

aed459512d857a0a6248cc9cb5785963a335b47e
SHA256

27f824a80ebdad6b53d01f487ecb17616c0a2a9d9700ca3be3b1c1a24cdc1f71
SHA512

ce06d3aa738e8f466c0e2be8cd9e2a79c286f4af4c7ed88da95d8b93bfa998e705eb25b6f5c9ae8d1d11fe4787f0c743edefae985d8756e822b1b003fcd61107
SSDEEP

24576:7bx5ACyRtvPExqgcSSu5bqhD92oK8t7yz5b/UXq60Lnyx2M3TttxnvR:vAVRBPhbSFAhcKtYiq60LnKTVnp

Score

10^/10

blustealer discovery stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
efinancet.shop
Port:
587
Username:
[email protected]
Password:
HCYis3WEB8!Z

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

Executes dropped EXE 1 IoCs

pid	Process
884	snto.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30

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 6 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	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	snto.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2792	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe
Token: SeDebugPrivilege	884	snto.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2916	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2916	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	30
PID 3032 wrote to memory of 2720	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2720	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2720	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2720	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2716	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	32
PID 3032 wrote to memory of 2716	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	32
PID 3032 wrote to memory of 2716	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	32
PID 3032 wrote to memory of 2716	3032	2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe	32
PID 2720 wrote to memory of 2792	2720	cmd.exe	35
PID 2720 wrote to memory of 2792	2720	cmd.exe	35
PID 2720 wrote to memory of 2792	2720	cmd.exe	35
PID 2720 wrote to memory of 2792	2720	cmd.exe	35
PID 636 wrote to memory of 884	636	taskeng.exe	38
PID 636 wrote to memory of 884	636	taskeng.exe	38
PID 636 wrote to memory of 884	636	taskeng.exe	38
PID 636 wrote to memory of 884	636	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\snto\snto.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\snto\snto.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\2e6372abf5c58a233b273eb612950567_JaffaCakes118.exe" "C:\Users\Admin\AppData\Roaming\snto\snto.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716

C:\Windows\system32\taskeng.exe
taskeng.exe {52A72387-CEB8-4589-9890-C8E648B5362D} S-1-5-21-3434294380-2554721341-1919518612-1000:ELZYPTFV\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:636
- C:\Users\Admin\AppData\Roaming\snto\snto.exe
  C:\Users\Admin\AppData\Roaming\snto\snto.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\snto\snto.exe

Filesize
1.3MB

MD5
2e6372abf5c58a233b273eb612950567

SHA1
aed459512d857a0a6248cc9cb5785963a335b47e

SHA256
27f824a80ebdad6b53d01f487ecb17616c0a2a9d9700ca3be3b1c1a24cdc1f71

SHA512
ce06d3aa738e8f466c0e2be8cd9e2a79c286f4af4c7ed88da95d8b93bfa998e705eb25b6f5c9ae8d1d11fe4787f0c743edefae985d8756e822b1b003fcd61107

Download Submit
memory/884-21-0x0000000000F90000-0x00000000010EE000-memory.dmp

Filesize
1.4MB

Download
memory/2916-12-0x0000000000400000-0x0000000000509000-memory.dmp

Filesize
1.0MB

Download
memory/2916-6-0x0000000000400000-0x0000000000509000-memory.dmp

Filesize
1.0MB

Download
memory/2916-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-7-0x0000000000400000-0x0000000000509000-memory.dmp

Filesize
1.0MB

Download
memory/2916-5-0x0000000000400000-0x0000000000509000-memory.dmp

Filesize
1.0MB

Download
memory/2916-13-0x0000000000400000-0x0000000000509000-memory.dmp

Filesize
1.0MB

Download
memory/2916-18-0x0000000000400000-0x0000000000509000-memory.dmp

Filesize
1.0MB

Download
memory/3032-3-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

Filesize
4KB

Download
memory/3032-4-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

Filesize
4KB

Download
memory/3032-2-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/3032-1-0x0000000000CF0000-0x0000000000E4E000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads