blustealer | 4accc75edd57e5a6e939f1c122ad24949c1305ce70d9796fd57b8d3028f4a8da

Analysis

max time kernel
141s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
17-03-2024 15:32

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General

Target

d13bb43ed0d785b7026cbfd743123568.exe
Size

826KB
MD5

d13bb43ed0d785b7026cbfd743123568
SHA1

77921fd7d2a82f9d42a44fee2df3dfd7e1c459f6
SHA256

4accc75edd57e5a6e939f1c122ad24949c1305ce70d9796fd57b8d3028f4a8da
SHA512

1b1015aed280490ef537297bc093ede2dc32c3f1a66edd713835c047bde10c810d3e75b59f196104d9ac88cb6a1a6b971caa17e91189bb8fe56f46bc10003837
SSDEEP

12288:Zu5JfleohV9oasH4EIKGZeBAuUyf1aAjBHwYDxt1YHsH:Zu5Jt5o3H4EIKyDmf1a6wYDjKs

Score

10^/10

blustealer zgrat rat stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
restd.club
Port:
587
Username:
[email protected]
Password:
mQJrXsvkEb#S

Signatures

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

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral2/memory/3740-7-0x0000000006D50000-0x0000000006DC6000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-8-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-9-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-11-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-13-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-15-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-17-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-19-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-21-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-23-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-25-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-27-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-29-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-32-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-34-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-36-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-38-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-40-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-42-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-44-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-46-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-48-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-50-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-52-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-54-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-56-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-58-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-60-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-62-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-64-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-66-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-68-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-70-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3740-72-0x0000000006D50000-0x0000000006DC0000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	d13bb43ed0d785b7026cbfd743123568.exe

Deletes itself 1 IoCs

pid	Process
4872	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3740 set thread context of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
3740	d13bb43ed0d785b7026cbfd743123568.exe
4872	powershell.exe
4872	powershell.exe
4872	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3740	d13bb43ed0d785b7026cbfd743123568.exe
Token: SeDebugPrivilege	4872	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1556	d13bb43ed0d785b7026cbfd743123568.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 4872	3740	d13bb43ed0d785b7026cbfd743123568.exe	109
PID 3740 wrote to memory of 4872	3740	d13bb43ed0d785b7026cbfd743123568.exe	109
PID 3740 wrote to memory of 4872	3740	d13bb43ed0d785b7026cbfd743123568.exe	109
PID 3740 wrote to memory of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111
PID 3740 wrote to memory of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111
PID 3740 wrote to memory of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111
PID 3740 wrote to memory of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111
PID 3740 wrote to memory of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111
PID 3740 wrote to memory of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111
PID 3740 wrote to memory of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111
PID 3740 wrote to memory of 1556	3740	d13bb43ed0d785b7026cbfd743123568.exe	111

C:\Users\Admin\AppData\Local\Temp\d13bb43ed0d785b7026cbfd743123568.exe
"C:\Users\Admin\AppData\Local\Temp\d13bb43ed0d785b7026cbfd743123568.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3740
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5; Remove-Item -Path "C:\Users\Admin\AppData\Local\Temp\d13bb43ed0d785b7026cbfd743123568.exe" -Force
  2⤵
  - Deletes itself
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4872
- C:\Users\Admin\AppData\Local\Temp\d13bb43ed0d785b7026cbfd743123568.exe
  C:\Users\Admin\AppData\Local\Temp\d13bb43ed0d785b7026cbfd743123568.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1556

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4072 --field-trial-handle=2284,i,2771196087253062161,8107167670425198948,262144 --variations-seed-version /prefetch:8
1⤵
PID:4528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nprps42s.4kf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1556-2337-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1556-2353-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/3740-54-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-11-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-5-0x0000000005580000-0x000000000558A000-memory.dmp

Filesize
40KB

Download
memory/3740-6-0x00000000068C0000-0x0000000006968000-memory.dmp

Filesize
672KB

Download
memory/3740-7-0x0000000006D50000-0x0000000006DC6000-memory.dmp

Filesize
472KB

Download
memory/3740-8-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-9-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-56-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-13-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-15-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-17-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-19-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-21-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-23-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-25-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-27-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-29-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-30-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3740-32-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-34-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-36-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-38-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-40-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-42-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-44-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-46-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-48-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-50-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-52-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-0-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3740-60-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-58-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-4-0x0000000005760000-0x0000000005770000-memory.dmp

Filesize
64KB

Download
memory/3740-62-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-64-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-66-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-68-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-70-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-72-0x0000000006D50000-0x0000000006DC0000-memory.dmp

Filesize
448KB

Download
memory/3740-848-0x0000000005760000-0x0000000005770000-memory.dmp

Filesize
64KB

Download
memory/3740-2326-0x00000000011F0000-0x0000000001256000-memory.dmp

Filesize
408KB

Download
memory/3740-1-0x0000000000AA0000-0x0000000000B74000-memory.dmp

Filesize
848KB

Download
memory/3740-2-0x0000000005AD0000-0x0000000006074000-memory.dmp

Filesize
5.6MB

Download
memory/3740-2338-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3740-3-0x00000000055C0000-0x0000000005652000-memory.dmp

Filesize
584KB

Download
memory/4872-2340-0x00000000059E0000-0x0000000005A02000-memory.dmp

Filesize
136KB

Download
memory/4872-2355-0x00000000069F0000-0x0000000006A3C000-memory.dmp

Filesize
304KB

Download
memory/4872-2331-0x0000000005580000-0x0000000005590000-memory.dmp

Filesize
64KB

Download
memory/4872-2354-0x00000000069A0000-0x00000000069BE000-memory.dmp

Filesize
120KB

Download
memory/4872-2333-0x0000000005580000-0x0000000005590000-memory.dmp

Filesize
64KB

Download
memory/4872-2329-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/4872-2328-0x00000000053B0000-0x00000000053E6000-memory.dmp

Filesize
216KB

Download
memory/4872-2334-0x0000000005BC0000-0x00000000061E8000-memory.dmp

Filesize
6.2MB

Download
memory/4872-2341-0x0000000005A80000-0x0000000005AE6000-memory.dmp

Filesize
408KB

Download
memory/4872-2352-0x00000000063D0000-0x0000000006724000-memory.dmp

Filesize
3.3MB

Download
memory/4872-2356-0x0000000005580000-0x0000000005590000-memory.dmp

Filesize
64KB

Download
memory/4872-2357-0x0000000008020000-0x000000000869A000-memory.dmp

Filesize
6.5MB

Download
memory/4872-2358-0x0000000006E90000-0x0000000006EAA000-memory.dmp

Filesize
104KB

Download
memory/4872-2359-0x0000000007C40000-0x0000000007CD6000-memory.dmp

Filesize
600KB

Download
memory/4872-2360-0x0000000006F70000-0x0000000006F92000-memory.dmp

Filesize
136KB

Download
memory/4872-2363-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download