blustealer | a1f05c1b3abcd13e9666882d300ab3e39865b0ace466e8e62737787caacf77b0

General

Target

hesaphareketi-01.exe
Size

88KB
MD5

b512acd6e24d0dd3f81451daf4e3cd59
SHA1

7463697bb4396a5193c6ab690e240558beb921b9
SHA256

a1f05c1b3abcd13e9666882d300ab3e39865b0ace466e8e62737787caacf77b0
SHA512

8de538963955c57e30ac45debc5d5c00305ea41d2aa6d539d0a62c5b55b0208ae123bb9e85787921fcb00c8b3b0b4d96767f4d7d03c604e553aeb3016a198a17
SSDEEP

384:YAfkHnAev2PRr3Gy+AzJLVK8SykdvA98pgNkDlmSyqf2odsgwjbYJp2trlq8R:YzHw5z5LVKkSohN0lUqf2TbYJWRqK

Score

10^/10

blustealer stormkitty persistence stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5468731092:AAGGNQWBVRhX622u6xp1moMhaunIGtXuIxg/sendMessage?chat_id=1639214896

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/2160-153-0x0000000000F00000-0x0000000000F1A000-memory.dmp	family_stormkitty

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	hesaphareketi-01.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xroizjfjf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Uphevzmzls\\Xroizjfjf.exe\""	hesaphareketi-01.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
43	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5096 set thread context of 3544	5096	hesaphareketi-01.exe	91
PID 3544 set thread context of 2160	3544	hesaphareketi-01.exe	92

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2560	powershell.exe
2560	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5096	hesaphareketi-01.exe
Token: SeDebugPrivilege	2560	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3544	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 2560	5096	hesaphareketi-01.exe	82
PID 5096 wrote to memory of 2560	5096	hesaphareketi-01.exe	82
PID 5096 wrote to memory of 2560	5096	hesaphareketi-01.exe	82
PID 5096 wrote to memory of 3544	5096	hesaphareketi-01.exe	91
PID 5096 wrote to memory of 3544	5096	hesaphareketi-01.exe	91
PID 5096 wrote to memory of 3544	5096	hesaphareketi-01.exe	91
PID 5096 wrote to memory of 3544	5096	hesaphareketi-01.exe	91
PID 5096 wrote to memory of 3544	5096	hesaphareketi-01.exe	91
PID 5096 wrote to memory of 3544	5096	hesaphareketi-01.exe	91
PID 5096 wrote to memory of 3544	5096	hesaphareketi-01.exe	91
PID 5096 wrote to memory of 3544	5096	hesaphareketi-01.exe	91
PID 3544 wrote to memory of 2160	3544	hesaphareketi-01.exe	92
PID 3544 wrote to memory of 2160	3544	hesaphareketi-01.exe	92
PID 3544 wrote to memory of 2160	3544	hesaphareketi-01.exe	92
PID 3544 wrote to memory of 2160	3544	hesaphareketi-01.exe	92
PID 3544 wrote to memory of 2160	3544	hesaphareketi-01.exe	92

C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5096
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2560
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3544
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Checks processor information in registry
    PID:2160

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2160-153-0x0000000000F00000-0x0000000000F1A000-memory.dmp

Filesize
104KB

Download
memory/2560-144-0x0000000006DF0000-0x0000000006E0A000-memory.dmp

Filesize
104KB

Download
memory/2560-143-0x0000000007F40000-0x00000000085BA000-memory.dmp

Filesize
6.5MB

Download
memory/2560-142-0x0000000005AA0000-0x0000000005ABE000-memory.dmp

Filesize
120KB

Download
memory/2560-138-0x0000000003360000-0x0000000003396000-memory.dmp

Filesize
216KB

Download
memory/2560-139-0x0000000005B00000-0x0000000006128000-memory.dmp

Filesize
6.2MB

Download
memory/2560-140-0x0000000005A10000-0x0000000005A76000-memory.dmp

Filesize
408KB

Download
memory/2560-141-0x00000000062E0000-0x0000000006346000-memory.dmp

Filesize
408KB

Download
memory/3544-146-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3544-148-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3544-151-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/5096-136-0x0000000007F70000-0x0000000007F92000-memory.dmp

Filesize
136KB

Download
memory/5096-135-0x0000000004E40000-0x0000000004E4A000-memory.dmp

Filesize
40KB

Download
memory/5096-132-0x0000000000490000-0x00000000004AC000-memory.dmp

Filesize
112KB

Download
memory/5096-134-0x0000000004ED0000-0x0000000004F62000-memory.dmp

Filesize
584KB

Download
memory/5096-133-0x0000000005480000-0x0000000005A24000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads