f403e5db7055c16c5608a7c5c5e8d72541f88a83720b84f6ee2a8ed7212f75a8

Analysis

max time kernel
94s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/11/2024, 10:03

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General

Target
7zS850A099E/61e7501db65f3_Tue23c7b395c3.exe
Size 1.6MB
Sample241109-l3mlvssdqq
SHA256 556d5c93b2ceb585711ccce22e39e3327f388b893d76a3a7974967fe99a6fa7f
MD5 79400b1fd740d9cb7ec7c2c2e9a7d618
SHA1 8ab8d7dcd469853f61ca27b8afe2ab6e0f2a1bb3
SHA512 3ed024b02d7410d5ddc7bb772a2b3e8a5516a16d1cb5fac9f5d925da84b376b67117daf238fb53c7707e6bb86a0198534ad1e79b6ebed979b505b3faf9ae55ac
SSDEEP 24576:nui93Vkg97e2KjCcGIG4W6VifDWIkJ7iJtxNhtNNefd0OIG3RQlyrLxoA8ZPo+Zn:dlJe9G3D6JYxpNNEd0OIcRfn0Po+Z1I
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

discovery spyware stealer upx

Malware Config

Signatures

Detected Nirsoft tools 2 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral22/memory/2688-6-0x0000000000400000-0x0000000000480000-memory.dmp	Nirsoft
behavioral22/memory/4488-17-0x0000000000400000-0x0000000000483000-memory.dmp	Nirsoft

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral22/memory/4488-17-0x0000000000400000-0x0000000000483000-memory.dmp	WebBrowserPassView

Executes dropped EXE 2 IoCs

pid	Process
2688	11111.exe
4488	11111.exe

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

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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
3	ip-api.com

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral22/files/0x000a000000023c58-2.dat	upx
behavioral22/memory/2688-3-0x0000000000400000-0x0000000000480000-memory.dmp	upx
behavioral22/memory/2688-6-0x0000000000400000-0x0000000000480000-memory.dmp	upx
behavioral22/files/0x000d000000023b48-10.dat	upx
behavioral22/memory/4488-11-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral22/memory/4488-17-0x0000000000400000-0x0000000000483000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11111.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11111.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4488	11111.exe
4488	11111.exe
4488	11111.exe
4488	11111.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 2688	4004	61e7501db65f3_Tue23c7b395c3.exe	87
PID 4004 wrote to memory of 2688	4004	61e7501db65f3_Tue23c7b395c3.exe	87
PID 4004 wrote to memory of 2688	4004	61e7501db65f3_Tue23c7b395c3.exe	87
PID 4004 wrote to memory of 4488	4004	61e7501db65f3_Tue23c7b395c3.exe	92
PID 4004 wrote to memory of 4488	4004	61e7501db65f3_Tue23c7b395c3.exe	92
PID 4004 wrote to memory of 4488	4004	61e7501db65f3_Tue23c7b395c3.exe	92

C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e7501db65f3_Tue23c7b395c3.exe
"C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e7501db65f3_Tue23c7b395c3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Users\Admin\AppData\Local\Temp\11111.exe
  C:\Users\Admin\AppData\Local\Temp\11111.exe /CookiesFile "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Cookies" /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Users\Admin\AppData\Local\Temp\11111.exe
  C:\Users\Admin\AppData\Local\Temp\11111.exe /stab C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

11111.exe

Path C:\Users\Admin\AppData\Local\Temp\11111.exe
Size 215KB
SHA256 6abf00e8457005606b0286fba4abc75bdb5d8d8267b17678d719122946db5c17
MD5 94989927a6611e1919f84e1871922b63
SHA1 b602e4c47c9c42c273b68a1ce85f0814c0e05deb
SHA512 ce69c1597f759efdb61ba441a5c16b587b77e3780e134c312dc832a502a1933b04f6b981e0e4b5c998c38d77b25763d2c2875cb790b142f44a416dcf75880b6e
SSDEEP 6144:DERMBq9jq2NGwMJNbmURxuAJitR6iWro8CoWoS:DGBlZMPCURxkt8jE8PWoS
MD5 SHA1 SHA512 SSDEEP

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11111.exe

Path C:\Users\Admin\AppData\Local\Temp\11111.exe
Size 207KB
SHA256 b4ef7ee228c1500f7bb3686361b1a246954efe04cf14d218b5ee709bc0d88b45
MD5 d0527733abcc5c58735e11d43061b431
SHA1 28de9d191826192721e325787b8a50a84328cffd
SHA512 7704b215fade38c9a4aa2395263f3d4d9392b318b5644146464d233006a6de86f53a5f6e47cd909c0d968e3ef4db397f52e28ca4d6a1b2e88e1c40a1dbde3fb5
SSDEEP 3072:r8ypakaZIg1Z9dx7u8wuhDJR+iW1QoWksPzCDWASnlhrzjOEbI8Ypout4az:9aZIg1Z/FuBYHiZyASlNGEbDYpoSPz
MD5 SHA1 SHA512 SSDEEP

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fj4ghga23_fsa.txt

Path C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
Size 1KB
SHA256 b2229fb8531832fe5cf163921798e3828f07ef77f26d372a594254c9651c2929
MD5 30188d66149fba77523414f45f7b03ff
SHA1 6c7be340f942984c5003bc37aaf64925a6f4fc3f
SHA512 3ab25089b7a65c55b6f674d637731d180d55209b0246d385c79fde511572e6c06a834b2d0fbd12cc9cfd4a29264f374f23e0396c47eeb51128c5d5d8def73e85
MD5 SHA1 SHA512

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fj4ghga23_fsa.txt

Path C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
Size 31B
SHA256 fe9e28ff0b652e22a124b0a05382bc1ac48cbd9c7c76ca647b0c9f8542888f66
MD5 b7161c0845a64ff6d7345b67ff97f3b0
SHA1 d223f855da541fe8e4c1d5c50cb26da0a1deb5fc
SHA512 98d8971ff20ba256cf886a9db416ac9366d2c6ad4ff51a65bd7e539974dc93f4c897f92d8c9c0319c69b27eacf05cd350a0302828e63190b03457a0eda57f680
MD5 SHA1 SHA512

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memory/2688-3-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/2688-6-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4488-11-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/4488-17-0x0000000000400000-0x0000000000483000-memory.dmp

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