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/3704-152-0x0000000000500000-0x000000000051A000-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	doc070902248304840384739-11983769230.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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

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
59	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2052 set thread context of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 1292 set thread context of 3704	1292	doc070902248304840384739-11983769230.exe	97

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

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
3636	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2052	doc070902248304840384739-11983769230.exe
2052	doc070902248304840384739-11983769230.exe
2052	doc070902248304840384739-11983769230.exe
2052	doc070902248304840384739-11983769230.exe
2052	doc070902248304840384739-11983769230.exe
2052	doc070902248304840384739-11983769230.exe
2052	doc070902248304840384739-11983769230.exe
1608	powershell.exe
1608	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1292	doc070902248304840384739-11983769230.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2052	doc070902248304840384739-11983769230.exe
Token: SeDebugPrivilege	1608	powershell.exe
Token: SeDebugPrivilege	3704	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1292	doc070902248304840384739-11983769230.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1608	2052	doc070902248304840384739-11983769230.exe	92
PID 2052 wrote to memory of 1608	2052	doc070902248304840384739-11983769230.exe	92
PID 2052 wrote to memory of 1608	2052	doc070902248304840384739-11983769230.exe	92
PID 2052 wrote to memory of 3636	2052	doc070902248304840384739-11983769230.exe	94
PID 2052 wrote to memory of 3636	2052	doc070902248304840384739-11983769230.exe	94
PID 2052 wrote to memory of 3636	2052	doc070902248304840384739-11983769230.exe	94
PID 2052 wrote to memory of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 2052 wrote to memory of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 2052 wrote to memory of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 2052 wrote to memory of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 2052 wrote to memory of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 2052 wrote to memory of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 2052 wrote to memory of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 2052 wrote to memory of 1292	2052	doc070902248304840384739-11983769230.exe	96
PID 1292 wrote to memory of 3704	1292	doc070902248304840384739-11983769230.exe	97
PID 1292 wrote to memory of 3704	1292	doc070902248304840384739-11983769230.exe	97
PID 1292 wrote to memory of 3704	1292	doc070902248304840384739-11983769230.exe	97
PID 1292 wrote to memory of 3704	1292	doc070902248304840384739-11983769230.exe	97
PID 1292 wrote to memory of 3704	1292	doc070902248304840384739-11983769230.exe	97

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\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:2052
- 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:1608
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fjuIjtcpvLma" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD716.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3636
- 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:1292
- - 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:3704

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD716.tmp

Filesize
1KB

MD5
5bdeacdde81c7cce207e273bad88b55a

SHA1
b15d3363b62897d4ce9428a224e4fa23c376b53d

SHA256
c2f2a2b19745142593f2c1a1df4df704f45b4f51c5ca320cb8926823e4d152ff

SHA512
401769163eb262a52e493579899660b7bf8b0286bce57238939ce4e9b1c42c39b1e672f640c16edda50321e24e2001715bad1b59b16391b535905c151b54ca54

Download Submit
memory/1292-165-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1292-153-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1292-145-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1292-143-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1608-156-0x0000000070C10000-0x0000000070C5C000-memory.dmp

Filesize
304KB

Download
memory/1608-154-0x0000000005BE0000-0x0000000005BFE000-memory.dmp

Filesize
120KB

Download
memory/1608-141-0x00000000022C0000-0x00000000022F6000-memory.dmp

Filesize
216KB

Download
memory/1608-164-0x0000000007200000-0x0000000007208000-memory.dmp

Filesize
32KB

Download
memory/1608-163-0x0000000007220000-0x000000000723A000-memory.dmp

Filesize
104KB

Download
memory/1608-162-0x0000000007120000-0x000000000712E000-memory.dmp

Filesize
56KB

Download
memory/1608-147-0x0000000004EC0000-0x00000000054E8000-memory.dmp

Filesize
6.2MB

Download
memory/1608-149-0x0000000004C10000-0x0000000004C32000-memory.dmp

Filesize
136KB

Download
memory/1608-150-0x0000000004CB0000-0x0000000004D16000-memory.dmp

Filesize
408KB

Download
memory/1608-161-0x0000000007160000-0x00000000071F6000-memory.dmp

Filesize
600KB

Download
memory/1608-160-0x0000000006F50000-0x0000000006F5A000-memory.dmp

Filesize
40KB

Download
memory/1608-159-0x0000000006EE0000-0x0000000006EFA000-memory.dmp

Filesize
104KB

Download
memory/1608-158-0x0000000007530000-0x0000000007BAA000-memory.dmp

Filesize
6.5MB

Download
memory/1608-155-0x00000000061F0000-0x0000000006222000-memory.dmp

Filesize
200KB

Download
memory/1608-157-0x0000000006180000-0x000000000619E000-memory.dmp

Filesize
120KB

Download
memory/2052-132-0x0000000000880000-0x000000000098E000-memory.dmp

Filesize
1.1MB

Download
memory/2052-134-0x0000000005320000-0x00000000053B2000-memory.dmp

Filesize
584KB

Download
memory/2052-135-0x00000000053D0000-0x00000000053DA000-memory.dmp

Filesize
40KB

Download
memory/2052-136-0x0000000008EA0000-0x0000000008F3C000-memory.dmp

Filesize
624KB

Download
memory/2052-137-0x0000000001360000-0x00000000013C6000-memory.dmp

Filesize
408KB

Download
memory/2052-133-0x0000000005830000-0x0000000005DD4000-memory.dmp

Filesize
5.6MB

Download
memory/3704-152-0x0000000000500000-0x000000000051A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads