blustealer | 02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd

General

Target

doc070902248304840384739-11983769230.exe
Size

1.0MB
MD5

82a1be67742da347df519c0c0b75ed87
SHA1

163e5d1758c7be66a6a3a35d2f9973d209383567
SHA256

02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd
SHA512

d2051aa0284e0ab9151417d05eafc037695c32d6bf67512b2c8155ecc303774bdc950c24a658fb88787c4f1c3f6ae8bb0bba2017d90129afcbf484f40baaa4a7
SSDEEP

12288:I5bIINzS9JAJgapke+yoaYRy6Wrq2vElGv9W:qbNzoJ0gakNy9cjWm2UGv

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

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/4808-152-0x0000000000F70000-0x0000000000F8A000-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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	doc070902248304840384739-11983769230.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.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
68	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4892 set thread context of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 3760 set thread context of 4808	3760	doc070902248304840384739-11983769230.exe	105

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

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

T1053

pid	Process
3232	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4892	doc070902248304840384739-11983769230.exe
4892	doc070902248304840384739-11983769230.exe
4892	doc070902248304840384739-11983769230.exe
4892	doc070902248304840384739-11983769230.exe
4892	doc070902248304840384739-11983769230.exe
4892	doc070902248304840384739-11983769230.exe
4892	doc070902248304840384739-11983769230.exe
2760	powershell.exe
2760	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3760	doc070902248304840384739-11983769230.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4892	doc070902248304840384739-11983769230.exe
Token: SeDebugPrivilege	2760	powershell.exe
Token: SeDebugPrivilege	4808	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3760	doc070902248304840384739-11983769230.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 2760	4892	doc070902248304840384739-11983769230.exe	100
PID 4892 wrote to memory of 2760	4892	doc070902248304840384739-11983769230.exe	100
PID 4892 wrote to memory of 2760	4892	doc070902248304840384739-11983769230.exe	100
PID 4892 wrote to memory of 3232	4892	doc070902248304840384739-11983769230.exe	102
PID 4892 wrote to memory of 3232	4892	doc070902248304840384739-11983769230.exe	102
PID 4892 wrote to memory of 3232	4892	doc070902248304840384739-11983769230.exe	102
PID 4892 wrote to memory of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 4892 wrote to memory of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 4892 wrote to memory of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 4892 wrote to memory of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 4892 wrote to memory of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 4892 wrote to memory of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 4892 wrote to memory of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 4892 wrote to memory of 3760	4892	doc070902248304840384739-11983769230.exe	104
PID 3760 wrote to memory of 4808	3760	doc070902248304840384739-11983769230.exe	105
PID 3760 wrote to memory of 4808	3760	doc070902248304840384739-11983769230.exe	105
PID 3760 wrote to memory of 4808	3760	doc070902248304840384739-11983769230.exe	105
PID 3760 wrote to memory of 4808	3760	doc070902248304840384739-11983769230.exe	105
PID 3760 wrote to memory of 4808	3760	doc070902248304840384739-11983769230.exe	105

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\doc070902248304840384739-11983769230.exe
"C:\Users\Admin\AppData\Local\Temp\doc070902248304840384739-11983769230.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fjuIjtcpvLma.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2760
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fjuIjtcpvLma" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D3E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3232
- C:\Users\Admin\AppData\Local\Temp\doc070902248304840384739-11983769230.exe
  "C:\Users\Admin\AppData\Local\Temp\doc070902248304840384739-11983769230.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3760
- - 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:4808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7D3E.tmp

Filesize
1KB

MD5
16b6aef9fd2b3176be229d43983ccc72

SHA1
8991400ffd4fdf34ff3b875065a0e13b165dde39

SHA256
a75900d67b8a0d6a0fb47cd1a830891b903a11c9b583cede66c1dfc9068e0510

SHA512
2605577c6cc4db43d3341a2ca4c4a9425480ff75b72baca6a1f5bb100d61bb4e408390ba89d336b93d7689ac31a0425eed35f16f97a7dd86e022f84faebf25af

Download Submit
memory/2760-156-0x00000000710E0000-0x000000007112C000-memory.dmp

Filesize
304KB

Download
memory/2760-158-0x0000000007570000-0x0000000007BEA000-memory.dmp

Filesize
6.5MB

Download
memory/2760-159-0x0000000006F30000-0x0000000006F4A000-memory.dmp

Filesize
104KB

Download
memory/2760-150-0x0000000004D00000-0x0000000004D66000-memory.dmp

Filesize
408KB

Download
memory/2760-164-0x0000000007250000-0x0000000007258000-memory.dmp

Filesize
32KB

Download
memory/2760-155-0x0000000006DE0000-0x0000000006E12000-memory.dmp

Filesize
200KB

Download
memory/2760-140-0x00000000022F0000-0x0000000002326000-memory.dmp

Filesize
216KB

Download
memory/2760-163-0x0000000007270000-0x000000000728A000-memory.dmp

Filesize
104KB

Download
memory/2760-153-0x0000000005C30000-0x0000000005C4E000-memory.dmp

Filesize
120KB

Download
memory/2760-143-0x0000000005030000-0x0000000005658000-memory.dmp

Filesize
6.2MB

Download
memory/2760-160-0x0000000006FA0000-0x0000000006FAA000-memory.dmp

Filesize
40KB

Download
memory/2760-157-0x0000000006DA0000-0x0000000006DBE000-memory.dmp

Filesize
120KB

Download
memory/2760-149-0x0000000004B60000-0x0000000004B82000-memory.dmp

Filesize
136KB

Download
memory/2760-161-0x00000000071B0000-0x0000000007246000-memory.dmp

Filesize
600KB

Download
memory/2760-162-0x0000000007160000-0x000000000716E000-memory.dmp

Filesize
56KB

Download
memory/3760-144-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3760-154-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3760-165-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3760-146-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4808-152-0x0000000000F70000-0x0000000000F8A000-memory.dmp

Filesize
104KB

Download
memory/4892-133-0x0000000005CF0000-0x0000000006294000-memory.dmp

Filesize
5.6MB

Download
memory/4892-132-0x0000000000D40000-0x0000000000E4E000-memory.dmp

Filesize
1.1MB

Download
memory/4892-135-0x00000000057F0000-0x00000000057FA000-memory.dmp

Filesize
40KB

Download
memory/4892-134-0x0000000005820000-0x00000000058B2000-memory.dmp

Filesize
584KB

Download
memory/4892-137-0x0000000001600000-0x0000000001666000-memory.dmp

Filesize
408KB

Download
memory/4892-136-0x0000000009340000-0x00000000093DC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads