blustealer | 34df71e1c8afa4f4909ee40372ad547fc67d2d7d97ded03b5e0ced87b39b2da4

General

Target

9087c87d6cb74d5c1791f3f27fa68586.exe
Size

1017KB
MD5

9087c87d6cb74d5c1791f3f27fa68586
SHA1

70a0e7d031787ca88aec2dfe355c02e42c9690f4
SHA256

34df71e1c8afa4f4909ee40372ad547fc67d2d7d97ded03b5e0ced87b39b2da4
SHA512

83fbd57e41255277ae479ee81e7040f48da3a89872ea9dce6b71589c54bcf54dd11815dec9f0a62c98164ba4bcbc7ce6fe40b754e1a275d9f37876851b27f1b3
SSDEEP

12288:Gf0/nU4XJmZPSufsmNzXO26VcwWVmIP/bnEK3hc0PoLj4E6SdHjW85m+b3aWClsD:GflZdfJ+2nX7EKOgonrtjFHbqWCKhEY

Score

10^/10

blustealer stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
@@@@@@

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2056 set thread context of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32

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
2724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2056	9087c87d6cb74d5c1791f3f27fa68586.exe
2056	9087c87d6cb74d5c1791f3f27fa68586.exe
2056	9087c87d6cb74d5c1791f3f27fa68586.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2056	9087c87d6cb74d5c1791f3f27fa68586.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2948	9087c87d6cb74d5c1791f3f27fa68586.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 2724	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	28
PID 2056 wrote to memory of 2724	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	28
PID 2056 wrote to memory of 2724	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	28
PID 2056 wrote to memory of 2724	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	28
PID 2056 wrote to memory of 2868	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	30
PID 2056 wrote to memory of 2868	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	30
PID 2056 wrote to memory of 2868	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	30
PID 2056 wrote to memory of 2868	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	30
PID 2056 wrote to memory of 2884	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	31
PID 2056 wrote to memory of 2884	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	31
PID 2056 wrote to memory of 2884	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	31
PID 2056 wrote to memory of 2884	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	31
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32
PID 2056 wrote to memory of 2948	2056	9087c87d6cb74d5c1791f3f27fa68586.exe	32

C:\Users\Admin\AppData\Local\Temp\9087c87d6cb74d5c1791f3f27fa68586.exe
"C:\Users\Admin\AppData\Local\Temp\9087c87d6cb74d5c1791f3f27fa68586.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2056
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hLWBntzUjvRwNP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC053.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2724
- C:\Users\Admin\AppData\Local\Temp\9087c87d6cb74d5c1791f3f27fa68586.exe
  "{path}"
  2⤵
  PID:2868
- C:\Users\Admin\AppData\Local\Temp\9087c87d6cb74d5c1791f3f27fa68586.exe
  "{path}"
  2⤵
  PID:2884
- C:\Users\Admin\AppData\Local\Temp\9087c87d6cb74d5c1791f3f27fa68586.exe
  "{path}"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2948

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC053.tmp

Filesize
1KB

MD5
b32a8df73f4565f0488040c019e2ba21

SHA1
610e47e8de70c48d37e3db954ff491c365a8003a

SHA256
0994c2ecbc950bbfd575745ee8ce10f1f3dc3443ed659d4e86fe4b12f318b5bc

SHA512
e0c3f2983a8d8732db12518a9dc9d01ce95f0c750c0a0b170ed605f52431a7fb7a49759c35c4cc44511c50194123c0b18438298ab110936ecfd2ded89345897f

Download Submit
memory/2056-4-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/2056-24-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/2056-3-0x00000000004D0000-0x00000000004D8000-memory.dmp

Filesize
32KB

Download
memory/2056-1-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/2056-0-0x0000000000C80000-0x0000000000D84000-memory.dmp

Filesize
1.0MB

Download
memory/2056-6-0x0000000008140000-0x000000000821E000-memory.dmp

Filesize
888KB

Download
memory/2056-2-0x0000000004E70000-0x0000000004EB0000-memory.dmp

Filesize
256KB

Download
memory/2056-7-0x0000000005110000-0x00000000051A4000-memory.dmp

Filesize
592KB

Download
memory/2056-5-0x0000000004E70000-0x0000000004EB0000-memory.dmp

Filesize
256KB

Download
memory/2948-11-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/2948-15-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/2948-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2948-21-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/2948-23-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/2948-13-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/2948-27-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads