blustealer | 191af06b64af5a66982aaede62467c05ff5f31ff85545aa8de753ded9e0f8c97

General

Target

hesaphareketi-01.exe
Size

95KB
MD5

ced49c7ea69c25463fc4b7e346cb1adc
SHA1

4fc86081fee8ec4198e279dbe9e1707003c22b21
SHA256

191af06b64af5a66982aaede62467c05ff5f31ff85545aa8de753ded9e0f8c97
SHA512

31beffda865e8973b9980fd3bf1d163076c8ee6463aada1c2287d54cdf9d230b6d28e1aa60e97a5fdb8d22aa004cdbffd034a038c22873bb1d6b3f28683939f1
SSDEEP

384:n02vN0lc0WYHZUI7WYLyLy10EyR9ZP4L2x+ZB:pl0l957UE5B

Score

10^/10

blustealer stormkitty collection 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/220-151-0x0000000000A20000-0x0000000000A3A000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.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\Cbslfyvu = "\"C:\\Users\\Admin\\AppData\\Roaming\\Flidfw\\Cbslfyvu.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
32	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 1408	2256	hesaphareketi-01.exe	84
PID 1408 set thread context of 220	1408	hesaphareketi-01.exe	85

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4040	powershell.exe
4040	powershell.exe
2256	hesaphareketi-01.exe
2256	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	hesaphareketi-01.exe
Token: SeDebugPrivilege	4040	powershell.exe
Token: SeDebugPrivilege	220	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1408	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 4040	2256	hesaphareketi-01.exe	81
PID 2256 wrote to memory of 4040	2256	hesaphareketi-01.exe	81
PID 2256 wrote to memory of 4040	2256	hesaphareketi-01.exe	81
PID 2256 wrote to memory of 4308	2256	hesaphareketi-01.exe	83
PID 2256 wrote to memory of 4308	2256	hesaphareketi-01.exe	83
PID 2256 wrote to memory of 4308	2256	hesaphareketi-01.exe	83
PID 2256 wrote to memory of 1408	2256	hesaphareketi-01.exe	84
PID 2256 wrote to memory of 1408	2256	hesaphareketi-01.exe	84
PID 2256 wrote to memory of 1408	2256	hesaphareketi-01.exe	84
PID 2256 wrote to memory of 1408	2256	hesaphareketi-01.exe	84
PID 2256 wrote to memory of 1408	2256	hesaphareketi-01.exe	84
PID 2256 wrote to memory of 1408	2256	hesaphareketi-01.exe	84
PID 2256 wrote to memory of 1408	2256	hesaphareketi-01.exe	84
PID 2256 wrote to memory of 1408	2256	hesaphareketi-01.exe	84
PID 1408 wrote to memory of 220	1408	hesaphareketi-01.exe	85
PID 1408 wrote to memory of 220	1408	hesaphareketi-01.exe	85
PID 1408 wrote to memory of 220	1408	hesaphareketi-01.exe	85
PID 1408 wrote to memory of 220	1408	hesaphareketi-01.exe	85
PID 1408 wrote to memory of 220	1408	hesaphareketi-01.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4040
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  2⤵
  PID:4308
- 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:1408
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:220

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

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/220-153-0x0000000000DF0000-0x0000000000E8C000-memory.dmp

Filesize
624KB

Download
memory/220-151-0x0000000000A20000-0x0000000000A3A000-memory.dmp

Filesize
104KB

Download
memory/1408-152-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1408-149-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1408-146-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1408-144-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2256-133-0x0000000007420000-0x0000000007442000-memory.dmp

Filesize
136KB

Download
memory/2256-132-0x0000000000E80000-0x0000000000E9E000-memory.dmp

Filesize
120KB

Download
memory/4040-136-0x00000000050A0000-0x00000000056C8000-memory.dmp

Filesize
6.2MB

Download
memory/4040-141-0x00000000063B0000-0x00000000063CA000-memory.dmp

Filesize
104KB

Download
memory/4040-140-0x00000000076B0000-0x0000000007D2A000-memory.dmp

Filesize
6.5MB

Download
memory/4040-139-0x0000000005EE0000-0x0000000005EFE000-memory.dmp

Filesize
120KB

Download
memory/4040-138-0x00000000058C0000-0x0000000005926000-memory.dmp

Filesize
408KB

Download
memory/4040-137-0x00000000057E0000-0x0000000005846000-memory.dmp

Filesize
408KB

Download
memory/4040-135-0x0000000004910000-0x0000000004946000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads