MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc3f44895ac985e4f035e7ca254ef0fff9ab26deba75c4594b73d69e52d2ce2a. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc3f44895ac985e4f035e7ca254ef0fff9ab26deba75c4594b73d69e52d2ce2a
SHA3-384 hash: 6cb41b935d4b4d1f632557dd1bfe47c7c3fa10540a0c88822890c446e44e2abc566078eae93bbafe7d81a1ef845c4bc6
SHA1 hash: aac2b3e046347fbd19a304de2aded6c153070943
MD5 hash: b79769e24b820430b0a8c992c3b649b7
humanhash: yankee-mirror-wisconsin-berlin
File name:b79769e24b820430b0a8c992c3b649b7
Download: download sample
Signature Formbook
Create hunting rule
File size:34'304 bytes
First seen:2022-06-16 23:03:30 UTC
Last seen:2022-06-16 23:47:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:EwG1AL6e3b2VTiNf7oDFYwQbXvLWRgcL0ST8iNxy2D:EwTL6e3b2ZMG7IWRgcL9HNxvD
TLSH T1A7F2BF9AF3948A65C9760BB1AE7353010F70F452DC22FF5E28D4950B6E223540B86FFA
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b28ccaacda53d39b (34 x Formbook, 1 x BitRAT, 1 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
293
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/280791/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.20.16034.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62abb6e5c07f2e38a14f743d/reports/7e143bb9-2073-40e8-a9ac-9b1d4013fa82/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8483393d-396f-407f-a632-36fa9468ec6e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1014825
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Machine Learning detection for dropped file
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 647321 Sample: QIsIW0wQhz Startdate: 17/06/2022 Architecture: WINDOWS Score: 100 46 www.games123887.xyz 2->46 48 www-bing-com.dual-a-0001.a-msedge.net 2->48 50 2 other IPs or domains 2->50 60 Snort IDS alert for network traffic 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus detection for URL or domain 2->64 66 10 other signatures 2->66 10 QIsIW0wQhz.exe 15 7 2->10         started        signatures3 process4 dnsIp5 58 toesbv.ga 192.185.174.189, 49773, 80 UNIFIEDLAYER-AS-1US United States 10->58 40 C:\Users\user\AppData\...\Qygtibkv.exe, PE32 10->40 dropped 42 C:\Users\...\Qygtibkv.exe:Zone.Identifier, ASCII 10->42 dropped 44 C:\Users\user\AppData\...\QIsIW0wQhz.exe.log, ASCII 10->44 dropped 76 Creates an undocumented autostart registry key 10->76 15 MSBuild.exe 10->15         started        18 cmd.exe 1 10->18         started        20 powershell.exe 15 10->20         started        file6 signatures7 process8 signatures9 78 Modifies the context of a thread in another process (thread injection) 15->78 80 Maps a DLL or memory area into another process 15->80 82 Sample uses process hollowing technique 15->82 84 2 other signatures 15->84 22 rundll32.exe 15->22         started        25 explorer.exe 15->25 injected 28 conhost.exe 18->28         started        30 timeout.exe 1 18->30         started        32 conhost.exe 20->32         started        process10 dnsIp11 68 Modifies the context of a thread in another process (thread injection) 22->68 70 Maps a DLL or memory area into another process 22->70 72 Tries to detect virtualization through RDTSC time measurements 22->72 34 cmd.exe 1 22->34         started        52 site.4dlo.com 118.99.6.56, 49857, 80 TELKOMNET-AS2-APPTTelekomunikasiIndonesiaID Hong Kong 25->52 54 www.thestereacompany.com 25->54 56 2 other IPs or domains 25->56 74 System process connects to network (likely due to code injection or exploit) 25->74 36 autofmt.exe 25->36         started        signatures12 process13 process14 38 conhost.exe 34->38         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fc3f44895ac985e4f035e7ca254ef0fff9ab26deba75c4594b73d69e52d2ce2a/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-16 23:04:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7q7ujck2zgc6j4bv47fcktxq7742wjw6xj24iwkloplj4uwszyva._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:yy48 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220616-219avaheel/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
fc3f44895ac985e4f035e7ca254ef0fff9ab26deba75c4594b73d69e52d2ce2a
MD5 hash:
b79769e24b820430b0a8c992c3b649b7
SHA1 hash:
aac2b3e046347fbd19a304de2aded6c153070943
Link:
https://www.unpac.me/results/f8b7a701-c937-4a61-ae22-22dfd8577737/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fc3f44895ac985e4f035e7ca254ef0fff9ab26deba75c4594b73d69e52d2ce2a

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe fc3f44895ac985e4f035e7ca254ef0fff9ab26deba75c4594b73d69e52d2ce2a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2241118/
Cape
Cape
https://www.capesandbox.com/analysis/280791/

Comments


Avatar
zbet commented on 2022-06-16 23:03:37 UTC

url : hxxp://104.168.32.21/21/fox.exe