blustealer | 9f42a87633b7a40b8ce90e2d156d2c98fa9ebf7946e3af454fddc82aaf259c91

General

Target

5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe
Size

963KB
MD5

5b99e078a95f02617911e2403177a8dd
SHA1

d9c1cbbd8d3b49c0af18b754e3a217689cf828fb
SHA256

9f42a87633b7a40b8ce90e2d156d2c98fa9ebf7946e3af454fddc82aaf259c91
SHA512

a4c5fc7789c8bc7ba16b48ffc5a9d6f761d165bcaacf6f3b654f5f22be22850fe955d9ac228107f73bc2a720d115851173f0b2a307ba753ccfb346091862f11f
SSDEEP

12288:yAeoSjd75My5rWpiBvy29xzqk5rm97D5BWKjQJj+UXxeLNdU:yhddBqwxJdm97D5rjQJj+cxydU

Score

10^/10

blustealer stealer

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
1140	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1336	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 1140	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	94
PID 2628 wrote to memory of 1140	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	94
PID 2628 wrote to memory of 1140	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	94
PID 2628 wrote to memory of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96
PID 2628 wrote to memory of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96
PID 2628 wrote to memory of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96
PID 2628 wrote to memory of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96
PID 2628 wrote to memory of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96
PID 2628 wrote to memory of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96
PID 2628 wrote to memory of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96
PID 2628 wrote to memory of 1336	2628	5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EnxgYjqgBbJac" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC5B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1140
- C:\Users\Admin\AppData\Local\Temp\5b99e078a95f02617911e2403177a8dd_JaffaCakes118.exe
  "{path}"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBC5B.tmp

Filesize
1KB

MD5
093de17bf1f75de68b4b6d10a61403b3

SHA1
e7afc84938027762c624fde7d9824e4d86f6f29b

SHA256
879a9857830c9f525b7c2981ce0bf9ce16f51d3f9815d5aa8d4d7022a1bafbea

SHA512
9805d188d8329f2655feb7a804b7a597c4a59d60547720483178c9de163c6c6b5b24faad006ff04301b261c9adb4a74d2ba52e0d9db4f83106b994f4e6c590e8

Download Submit
memory/1336-22-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1336-18-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1336-15-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2628-4-0x0000000004CC0000-0x0000000004D5C000-memory.dmp

Filesize
624KB

Download
memory/2628-5-0x0000000004F30000-0x0000000004F40000-memory.dmp

Filesize
64KB

Download
memory/2628-6-0x0000000004C30000-0x0000000004C3A000-memory.dmp

Filesize
40KB

Download
memory/2628-7-0x0000000004570000-0x0000000004584000-memory.dmp

Filesize
80KB

Download
memory/2628-8-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/2628-9-0x0000000004F30000-0x0000000004F40000-memory.dmp

Filesize
64KB

Download
memory/2628-10-0x0000000006440000-0x00000000064FA000-memory.dmp

Filesize
744KB

Download
memory/2628-11-0x00000000061A0000-0x0000000006210000-memory.dmp

Filesize
448KB

Download
memory/2628-0-0x00000000000F0000-0x00000000001E8000-memory.dmp

Filesize
992KB

Download
memory/2628-3-0x0000000004B80000-0x0000000004C12000-memory.dmp

Filesize
584KB

Download
memory/2628-19-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/2628-2-0x0000000005090000-0x0000000005634000-memory.dmp

Filesize
5.6MB

Download
memory/2628-1-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads