MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b0689ba526627ae1cefce61dde4198b704f4ce53f898e1222f6ce40b73bd391c. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: b0689ba526627ae1cefce61dde4198b704f4ce53f898e1222f6ce40b73bd391c
SHA3-384 hash: cd81a01a3d86ec4dd727998d30e36561cd6d976d57b143cc5a5971a4c43721c1ff57d65fa39f2b604e9949843eb45399
SHA1 hash: ef08b0d3e5429b93c2496747c5163fc55044adbe
MD5 hash: 73aaabd4d5155a4ed6a37c6c33a21602
humanhash: echo-lima-solar-five
File name:YRS1504720.exe
Download: download sample
Signature Formbook
File size:899'584 bytes
First seen:2022-04-15 11:53:18 UTC
Last seen:2022-04-20 10:22:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:S/BB3c/htMr+s8yxQsH3dQtQu3lDQH/Z:S5i/8qs1tpu1DQH/Z
Threatray 15'324 similar samples on MalwareBazaar
TLSH T14A15CF9D762072EFC867D472DEA82CA8FA50747B831F4213902705ADDA5E99BCF144F2
TrID 30.2% (.EXE) Win64 Executable (generic) (10523/12/4)
18.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
14.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.9% (.EXE) Win32 Executable (generic) (4505/5/1)
5.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 04d4ccd8c4ccd400 (10 x AgentTesla, 6 x SnakeKeylogger, 4 x Loki)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
2
# of downloads :
399
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
YRS1504720.exe
Verdict:
Malicious activity
Analysis date:
2022-04-15 11:56:18 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 609872 Sample: YRS1504720.exe Startdate: 15/04/2022 Architecture: WINDOWS Score: 100 33 www.translate-now.online 2->33 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 9 other signatures 2->47 11 YRS1504720.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\YRS1504720.exe.log, ASCII 11->31 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 63 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->63 15 YRS1504720.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 35 cinemaocity.com 162.214.80.43, 49800, 80 UNIFIEDLAYER-AS-1US United States 18->35 37 www.3a5hlv.icu 45.139.238.63, 49823, 80 TEAM-HOSTASRU Russian Federation 18->37 39 7 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 wlanext.exe 18->22         started        25 autofmt.exe 18->25         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
ByteCode-MSIL.Spyware.FormBook
Status:
Malicious
First seen:
2022-04-15 08:34:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
18 of 26 (69.23%)
Threat level:
  2/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:ahc8 loader rat suricata
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
af1f5074eff36653e6d54c5c7aabf990aee2cc70a72db4cfb1707e452349c574
MD5 hash:
fc0ae7f6d4aa4aa2c27c26407936ec3d
SHA1 hash:
dfa9b61be7f02298605ffe7e007617016c9bfc2b
SH256 hash:
d35467b63b49db0a76b12555dd4613cd585d1a89fc0cd7f9dd06c2535257783a
MD5 hash:
1e89aa13f54976f32b6faf7463c79a02
SHA1 hash:
651fa437bf58520e3e69401f582fce47fec261ed
SH256 hash:
b445034798ef9ec05abb23dfed3fea92a8589b05df2d9947d257071148b76522
MD5 hash:
e2e6144f1b8e7ac7d14ffd7404f9c972
SHA1 hash:
219c97fd5bea39c10c303334e20be421692e5638
SH256 hash:
b0689ba526627ae1cefce61dde4198b704f4ce53f898e1222f6ce40b73bd391c
MD5 hash:
73aaabd4d5155a4ed6a37c6c33a21602
SHA1 hash:
ef08b0d3e5429b93c2496747c5163fc55044adbe
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments