blustealer | d7a1984f2d549e8481d9430ec4012adae6c769c8672387b705b4a30795d2c512

General

Target

d72a055eebd32d10fe70ad01824d2c94.exe
Size

1.6MB
MD5

d72a055eebd32d10fe70ad01824d2c94
SHA1

7f9a5a2a7506b0597549443a15a3f2b6f551ba4a
SHA256

d7a1984f2d549e8481d9430ec4012adae6c769c8672387b705b4a30795d2c512
SHA512

cc41f135e6019f7c16a7eb47c9afb9dbbe2fc928dd519760a0c3f370b1dbaa37699730015d4e30cda16d694c02b74ccf06b388cb18e74eef390991890e788790
SSDEEP

49152:SxzBoHM1VVcP5x/s1NifYa1hsDT3HOzmZt3:SxzBos13q/s1gAbn37P

Score

10^/10

blustealer stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
smtp.nbliaoyaun.com
Port:
587
Username:
[email protected]
Password:
Treasure@55

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral2/memory/1428-7-0x00000000033A0000-0x00000000033B2000-memory.dmp	CustAttr

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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	d72a055eebd32d10fe70ad01824d2c94.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1428 set thread context of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105

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
4824	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2300	d72a055eebd32d10fe70ad01824d2c94.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1428 wrote to memory of 4824	1428	d72a055eebd32d10fe70ad01824d2c94.exe	103
PID 1428 wrote to memory of 4824	1428	d72a055eebd32d10fe70ad01824d2c94.exe	103
PID 1428 wrote to memory of 4824	1428	d72a055eebd32d10fe70ad01824d2c94.exe	103
PID 1428 wrote to memory of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105
PID 1428 wrote to memory of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105
PID 1428 wrote to memory of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105
PID 1428 wrote to memory of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105
PID 1428 wrote to memory of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105
PID 1428 wrote to memory of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105
PID 1428 wrote to memory of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105
PID 1428 wrote to memory of 2300	1428	d72a055eebd32d10fe70ad01824d2c94.exe	105

C:\Users\Admin\AppData\Local\Temp\d72a055eebd32d10fe70ad01824d2c94.exe
"C:\Users\Admin\AppData\Local\Temp\d72a055eebd32d10fe70ad01824d2c94.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1428
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vhfCLlSzhjCC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B1.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4824
- C:\Users\Admin\AppData\Local\Temp\d72a055eebd32d10fe70ad01824d2c94.exe
  "C:\Users\Admin\AppData\Local\Temp\d72a055eebd32d10fe70ad01824d2c94.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2300

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\tmp1B1.tmp

Filesize
1KB

MD5
4a1f837ebea56799396f58ce124999ad

SHA1
c08165ea7bf591e6f4fdf1fa607f2d8d58f38f31

SHA256
982b1f43ed5214cd55b57406a9784c11417a2a5fc71a1ea120e4ea355c8d1a25

SHA512
2339d454067b90fa5e776f4b0765b959c2138bcdd8c72c25cee6e30309936a79d109f53ad0a181766282dc1ada6bbdfb877b25f29a8942f184767b65f83c36b1

Download Submit
memory/1428-4-0x0000000005CD0000-0x0000000005D6C000-memory.dmp

Filesize
624KB

Download
memory/1428-7-0x00000000033A0000-0x00000000033B2000-memory.dmp

Filesize
72KB

Download
memory/1428-3-0x0000000005B20000-0x0000000005BB2000-memory.dmp

Filesize
584KB

Download
memory/1428-0-0x0000000000FB0000-0x000000000114E000-memory.dmp

Filesize
1.6MB

Download
memory/1428-9-0x0000000005F40000-0x0000000005F50000-memory.dmp

Filesize
64KB

Download
memory/1428-6-0x0000000005BF0000-0x0000000005BFA000-memory.dmp

Filesize
40KB

Download
memory/1428-2-0x00000000061E0000-0x0000000006784000-memory.dmp

Filesize
5.6MB

Download
memory/1428-8-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/1428-5-0x0000000005F40000-0x0000000005F50000-memory.dmp

Filesize
64KB

Download
memory/1428-10-0x0000000009060000-0x0000000009196000-memory.dmp

Filesize
1.2MB

Download
memory/1428-11-0x0000000009280000-0x000000000937C000-memory.dmp

Filesize
1008KB

Download
memory/1428-1-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/1428-21-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/2300-20-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2300-17-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2300-24-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads