blustealer | 2c4115951e3a55fe85cf0ebb6fcf5e65ccbebfa0774a3f15db7856b74e8e6647

General

Target

40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe
Size

1.3MB
MD5

40359b10d6abf5315ad4989515c8cd85
SHA1

7ff721bba3042816f6f7fd282c93d270247dd20f
SHA256

2c4115951e3a55fe85cf0ebb6fcf5e65ccbebfa0774a3f15db7856b74e8e6647
SHA512

b1583343d928976d222fe9ac9857e2f73f324b853e04be40602db2425c51a56681ad992d1d2adb95da454f5ce5ca1a7731ef0a380d1d84ca5b112fb182145005
SSDEEP

24576:7bx5ACyRtvPExqgcSSu5bqhD92oK8t7yz5b/UXq60Lnyx2M3TttxnvZ:vAVRBPhbSFAhcKtYiq60LnKTVnR

Score

10^/10

blustealer discovery stealer

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2964	snto.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2600 set thread context of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31

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 5 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	40359b10d6abf5315ad4989515c8cd85_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

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
2456	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe
Token: SeDebugPrivilege	2964	snto.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2812	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	31
PID 2600 wrote to memory of 2708	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	32
PID 2600 wrote to memory of 2708	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	32
PID 2600 wrote to memory of 2708	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	32
PID 2600 wrote to memory of 2708	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	32
PID 2600 wrote to memory of 2720	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	33
PID 2600 wrote to memory of 2720	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	33
PID 2600 wrote to memory of 2720	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	33
PID 2600 wrote to memory of 2720	2600	40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe	33
PID 2708 wrote to memory of 2456	2708	cmd.exe	36
PID 2708 wrote to memory of 2456	2708	cmd.exe	36
PID 2708 wrote to memory of 2456	2708	cmd.exe	36
PID 2708 wrote to memory of 2456	2708	cmd.exe	36
PID 1340 wrote to memory of 2964	1340	taskeng.exe	38
PID 1340 wrote to memory of 2964	1340	taskeng.exe	38
PID 1340 wrote to memory of 2964	1340	taskeng.exe	38
PID 1340 wrote to memory of 2964	1340	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Users\Admin\AppData\Local\Temp\40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe"
  2⤵
  PID:2812
- 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:2708
- - 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:2456
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\40359b10d6abf5315ad4989515c8cd85_JaffaCakes118.exe" "C:\Users\Admin\AppData\Roaming\snto\snto.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2720

C:\Windows\system32\taskeng.exe
taskeng.exe {426405B3-8A5D-47CD-B667-EAA666E93C6A} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1340
- 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:2964

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

Replay Monitor

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Downloads

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

Filesize
1.3MB

MD5
40359b10d6abf5315ad4989515c8cd85

SHA1
7ff721bba3042816f6f7fd282c93d270247dd20f

SHA256
2c4115951e3a55fe85cf0ebb6fcf5e65ccbebfa0774a3f15db7856b74e8e6647

SHA512
b1583343d928976d222fe9ac9857e2f73f324b853e04be40602db2425c51a56681ad992d1d2adb95da454f5ce5ca1a7731ef0a380d1d84ca5b112fb182145005

Download Submit
memory/2600-0-0x0000000074E2E000-0x0000000074E2F000-memory.dmp

Filesize
4KB

Download
memory/2600-1-0x0000000000C60000-0x0000000000DBE000-memory.dmp

Filesize
1.4MB

Download
memory/2600-2-0x0000000074E20000-0x000000007550E000-memory.dmp

Filesize
6.9MB

Download
memory/2600-3-0x0000000074E2E000-0x0000000074E2F000-memory.dmp

Filesize
4KB

Download
memory/2600-4-0x0000000074E20000-0x000000007550E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-7-0x0000000000080000-0x0000000000189000-memory.dmp

Filesize
1.0MB

Download
memory/2812-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-5-0x0000000000080000-0x0000000000189000-memory.dmp

Filesize
1.0MB

Download
memory/2812-6-0x0000000000080000-0x0000000000189000-memory.dmp

Filesize
1.0MB

Download
memory/2812-12-0x0000000000080000-0x0000000000189000-memory.dmp

Filesize
1.0MB

Download
memory/2964-18-0x0000000000030000-0x000000000018E000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads