3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e

Analysis

max time kernel
151s
max time network
151s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 17:25

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General

Target

3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe
Size

1.4MB
MD5

e30c81f42a72512d32754e595e80e942
SHA1

fe665ba908128e59957ff756a6a7984a0f71b2c6
SHA256

3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e
SHA512

d5c1c0937ddcea859c4b4fbc4ebdc1c8f8c04f1a49b2082e0968dc6b019d87bae88679983f1322a0fa4db15c1efa853a97375c2e175dfbced240cea89f71f8ff
SSDEEP

24576:j0AZbveE+KiB7+AwKeAm8J7X32A66MisH+98OqoYaejLs13doYg7:vbveE+tyAwBAm8RXale980sjLMA7

Score

10^/10

persistence spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.mail.ru
Port:
587
Username:
[email protected]
Password:
general123

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dwm\\dwm.exe"	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe

NirSoft WebBrowserPassView 9 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/660-63-0x0000000000400000-0x000000000046C000-memory.dmp	WebBrowserPassView
behavioral1/memory/660-64-0x0000000000400000-0x000000000046C000-memory.dmp	WebBrowserPassView
behavioral1/memory/660-71-0x0000000000000000-mapping.dmp	WebBrowserPassView
behavioral1/memory/660-73-0x0000000000400000-0x000000000046C000-memory.dmp	WebBrowserPassView
behavioral1/memory/660-76-0x0000000000400000-0x000000000046C000-memory.dmp	WebBrowserPassView
behavioral1/memory/992-87-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral1/memory/992-88-0x0000000000442628-mapping.dmp	WebBrowserPassView
behavioral1/memory/992-89-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral1/memory/992-90-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView

Nirsoft 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/660-63-0x0000000000400000-0x000000000046C000-memory.dmp	Nirsoft
behavioral1/memory/660-64-0x0000000000400000-0x000000000046C000-memory.dmp	Nirsoft
behavioral1/memory/660-71-0x0000000000000000-mapping.dmp	Nirsoft
behavioral1/memory/660-73-0x0000000000400000-0x000000000046C000-memory.dmp	Nirsoft
behavioral1/memory/660-76-0x0000000000400000-0x000000000046C000-memory.dmp	Nirsoft
behavioral1/memory/992-87-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral1/memory/992-88-0x0000000000442628-mapping.dmp	Nirsoft
behavioral1/memory/992-89-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral1/memory/992-90-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft

Executes dropped EXE 1 IoCs

Processes:

notepad .exe

pid process

660 notepad .exe
Loads dropped DLL 1 IoCs

Processes:

3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe

pid process

1772 3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 whatismyipaddress.com
6 whatismyipaddress.com
7 whatismyipaddress.com

pid	process
660	notepad .exe

flow	ioc
4	whatismyipaddress.com
6	whatismyipaddress.com
7	whatismyipaddress.com

Suspicious use of SetThreadContext 2 IoCs

Processes:

3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exenotepad .exe

description	pid	process	target process
PID 1772 set thread context of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 660 set thread context of 992	660	notepad .exe	vbc.exe

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

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

456 timeout.exe

pid	process
456	timeout.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exenotepad .exe

pid	process
1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe
1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe
1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe
660	notepad .exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exenotepad .exe

description	pid	process
Token: SeDebugPrivilege	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe
Token: SeDebugPrivilege	660	notepad .exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

notepad .exe

pid process

660 notepad .exe

pid	process
660	notepad .exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.execmd.exewscript.execmd.exenotepad .exe

description	pid	process	target process
PID 1772 wrote to memory of 1712	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1712	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1712	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1712	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1772 wrote to memory of 660	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	notepad .exe
PID 1712 wrote to memory of 884	1712	cmd.exe	wscript.exe
PID 1712 wrote to memory of 884	1712	cmd.exe	wscript.exe
PID 1712 wrote to memory of 884	1712	cmd.exe	wscript.exe
PID 1712 wrote to memory of 884	1712	cmd.exe	wscript.exe
PID 884 wrote to memory of 1100	884	wscript.exe	cmd.exe
PID 884 wrote to memory of 1100	884	wscript.exe	cmd.exe
PID 884 wrote to memory of 1100	884	wscript.exe	cmd.exe
PID 884 wrote to memory of 1100	884	wscript.exe	cmd.exe
PID 1772 wrote to memory of 1748	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1748	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1748	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1748	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1748 wrote to memory of 456	1748	cmd.exe	timeout.exe
PID 1748 wrote to memory of 456	1748	cmd.exe	timeout.exe
PID 1748 wrote to memory of 456	1748	cmd.exe	timeout.exe
PID 1748 wrote to memory of 456	1748	cmd.exe	timeout.exe
PID 1772 wrote to memory of 1916	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1916	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1916	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 1772 wrote to memory of 1916	1772	3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe	cmd.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe
PID 660 wrote to memory of 992	660	notepad .exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe
"C:\Users\Admin\AppData\Local\Temp\3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1772

C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\dwm\mata.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1712

C:\Windows\SysWOW64\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\dwm\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\dwm\mata2.bat
3⤵
- Suspicious use of WriteProcessMemory
PID:884

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\dwm\mata2.bat" "
4⤵
PID:1100

C:\Users\Admin\AppData\Local\Temp\notepad .exe
"C:\Users\Admin\AppData\Local\Temp\notepad .exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:660

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
3⤵
PID:992

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\dwm\stres.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:1748

C:\Windows\SysWOW64\timeout.exe
timeout /t 300
3⤵
- Delays execution with timeout.exe
PID:456

C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\dwm\melt.bat
2⤵
PID:1916

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\dwm\dwm.exe

Filesize
1.4MB

MD5
e30c81f42a72512d32754e595e80e942

SHA1
fe665ba908128e59957ff756a6a7984a0f71b2c6

SHA256
3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e

SHA512
d5c1c0937ddcea859c4b4fbc4ebdc1c8f8c04f1a49b2082e0968dc6b019d87bae88679983f1322a0fa4db15c1efa853a97375c2e175dfbced240cea89f71f8ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\dwm\invs.vbs

Filesize
78B

MD5
c578d9653b22800c3eb6b6a51219bbb8

SHA1
a97aa251901bbe179a48dbc7a0c1872e163b1f2d

SHA256
20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

SHA512
3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\dwm\mata.bat

Filesize
55B

MD5
3869b1297bc06c40dc6f5ea31718bff0

SHA1
e5653782e1b9744e96986f39193efcc6387738db

SHA256
f93541eaa86aee5f93d653aba074dc54036930dce6bc451aa34a8e70040c9b12

SHA512
3ba9e57331a04511edc2539827e056f4ad9dde0290638d5e628d1b29e2d367bfc17b1143b1f2cb5f07ebafac68464efdf562d98e29bf2f5622f3773fc0ec5b45

Download Submit
C:\Users\Admin\AppData\Local\Temp\dwm\mata2.bat

Filesize
56B

MD5
be1178e094e74d093f967770b1a7964c

SHA1
72be3cc73763b4cf3363aad44893a87090601c1f

SHA256
c54a8f69995f08d626a728a4df16011e509f314f6ab9ffaa951def8493198d46

SHA512
02af9f756ed552f6f0b14b4ea1482ef4b8479d53c42e35e905b1c67bd0362766d6484613880dbca45c20cb5730f5bdf6ba5d2141e830d1cf971388860492a9e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\dwm\rundll11-.txt

Filesize
1.4MB

MD5
e30c81f42a72512d32754e595e80e942

SHA1
fe665ba908128e59957ff756a6a7984a0f71b2c6

SHA256
3f572899a22d1111e4169fe2c55f5817a7b1a9e138614e97e9334d809fef334e

SHA512
d5c1c0937ddcea859c4b4fbc4ebdc1c8f8c04f1a49b2082e0968dc6b019d87bae88679983f1322a0fa4db15c1efa853a97375c2e175dfbced240cea89f71f8ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\dwm\stres.bat

Filesize
203B

MD5
b925c3b33f6d0202920661322f1ec35f

SHA1
1ead16fd004506d5ca48d9fcf39153b59baa50ec

SHA256
e5b85a2f172ba9f4f91eb938abb8d53bbf3a354cc84cee404717788d95542f91

SHA512
152c5f2a8753d0f369bd268d4c2244abde92bcc7fad0607a0c99aaeacfa91e13e6a6c7aec2ab9a5a34864517df2bbcb2a0d59a6949cd35f1441d3701df9e283b

Download Submit
C:\Users\Admin\AppData\Local\Temp\notepad .exe

Filesize
52KB

MD5
278edbd499374bf73621f8c1f969d894

SHA1
a81170af14747781c5f5f51bb1215893136f0bc0

SHA256
c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391

SHA512
93b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\notepad .exe

Filesize
52KB

MD5
278edbd499374bf73621f8c1f969d894

SHA1
a81170af14747781c5f5f51bb1215893136f0bc0

SHA256
c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391

SHA512
93b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9

Download Submit
\Users\Admin\AppData\Local\Temp\notepad .exe

Filesize
52KB

MD5
278edbd499374bf73621f8c1f969d894

SHA1
a81170af14747781c5f5f51bb1215893136f0bc0

SHA256
c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391

SHA512
93b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9

Download Submit
memory/456-84-0x0000000000000000-mapping.dmp

Download
memory/660-63-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/660-80-0x0000000074100000-0x00000000746AB000-memory.dmp

Filesize
5.7MB

Download
memory/660-64-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/660-79-0x0000000074100000-0x00000000746AB000-memory.dmp

Filesize
5.7MB

Download
memory/660-60-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/660-71-0x0000000000000000-mapping.dmp

Download
memory/660-73-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/660-61-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/660-76-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/884-65-0x0000000000000000-mapping.dmp

Download
memory/992-87-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/992-90-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/992-89-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

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memory/992-88-0x0000000000442628-mapping.dmp

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memory/1100-69-0x0000000000000000-mapping.dmp

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memory/1712-57-0x0000000000000000-mapping.dmp

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memory/1748-81-0x0000000000000000-mapping.dmp

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memory/1772-86-0x0000000074100000-0x00000000746AB000-memory.dmp

Filesize
5.7MB

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memory/1772-55-0x0000000074100000-0x00000000746AB000-memory.dmp

Filesize
5.7MB

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memory/1772-56-0x0000000074100000-0x00000000746AB000-memory.dmp

Filesize
5.7MB

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memory/1772-54-0x0000000075291000-0x0000000075293000-memory.dmp

Filesize
8KB

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memory/1916-85-0x0000000000000000-mapping.dmp

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