MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c292ddac09c57630068c0ed4b57ea874549ec12627cfcaf0a25277b26d042b46. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments

SHA256 hash: c292ddac09c57630068c0ed4b57ea874549ec12627cfcaf0a25277b26d042b46
SHA3-384 hash: 5f7361b460b5141d01cc07a316f472dd76ad46062dbb6762e50aab0340fcf76098366d516d6cd9ec3249391fcc855bbe
SHA1 hash: e0ad7c09afe99a1bb9bcef7f4c59b078a836fa9d
MD5 hash: 27f98194ef5c1923e2cf716ef07f8ff4
humanhash: papa-five-zulu-delaware
File name:shdybron2.1.exe
Download: download sample
Signature Formbook
File size:281'985 bytes
First seen:2022-10-10 13:16:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:HNeZmUFKKJn1RLblwHHvbgutRnKK+IRI+3BMaOI:HNlHY+HvbnRnKP+3B7
TLSH T1145412B53701D4A2E2930B331C3F4736BAB9590A61F0460F17B4A74E7966B83BE59B07
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Searching for synchronization primitives
Launching a process
Reading critical registry keys
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for the window
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Result
Verdict:
MALICIOUS
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 dropped file
C2 URLs / IPs found in malware configuration
Found hidden mapped module (file has been removed from disk)
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 dropped file
Multi AV Scanner detection for submitted file
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 FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 719876 Sample: shdybron2.1.exe Startdate: 11/10/2022 Architecture: WINDOWS Score: 100 52 Snort IDS alert for network traffic 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for dropped file 2->56 58 6 other signatures 2->58 10 shdybron2.1.exe 18 2->10         started        process3 file4 34 C:\Users\user\AppData\...\nhifjvitar.exe, PE32 10->34 dropped 13 nhifjvitar.exe 1 10->13         started        process5 file6 36 C:\Users\user\AppData\Local\Temp\1426.tmp, PE32 13->36 dropped 68 Multi AV Scanner detection for dropped file 13->68 70 Machine Learning detection for dropped file 13->70 72 Found hidden mapped module (file has been removed from disk) 13->72 74 Tries to detect virtualization through RDTSC time measurements 13->74 17 nhifjvitar.exe 13->17         started        20 WerFault.exe 23 9 13->20         started        signatures7 process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 17->44 46 Maps a DLL or memory area into another process 17->46 48 Sample uses process hollowing technique 17->48 50 Queues an APC in another process (thread injection) 17->50 22 rundll32.exe 17->22         started        25 explorer.exe 17->25 injected 28 WerFault.exe 17->28         started        process10 dnsIp11 60 Modifies the context of a thread in another process (thread injection) 22->60 62 Maps a DLL or memory area into another process 22->62 64 Tries to detect virtualization through RDTSC time measurements 22->64 30 cmd.exe 1 22->30         started        38 www.sandstormcase.us 103.224.212.221, 49706, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 25->38 40 www.giftr.online 194.9.94.86, 49705, 80 LOOPIASE Sweden 25->40 42 4 other IPs or domains 25->42 66 System process connects to network (likely due to code injection or exploit) 25->66 signatures12 process13 process14 32 conhost.exe 30->32         started       
Threat name:
Win32.Trojan.Exnet
Status:
Malicious
First seen:
2022-10-10 09:30:26 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:sk29 rat spyware stealer trojan
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
Program crash
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
1d39efad8321fe29d1aea9f37bf318e735130456214cfc0b6e3a69bd13eb9244
MD5 hash:
e298da29d8df3c19d4722b2b23ef9360
SHA1 hash:
b9e2bc6b7af204ef9627c3c67fdb87cf92d4ffb2
Detections:
FormBook win_formbook_auto win_formbook_g0
SH256 hash:
1b0e3017d539b5bcd3942acee9c45853ebccdd0848be21c21e04b676912e2240
MD5 hash:
1222ecde9c2f111e61638da9bb79c9f7
SHA1 hash:
194989e976b273b4e21f45491871fe67bb9e4720
SH256 hash:
c292ddac09c57630068c0ed4b57ea874549ec12627cfcaf0a25277b26d042b46
MD5 hash:
27f98194ef5c1923e2cf716ef07f8ff4
SHA1 hash:
e0ad7c09afe99a1bb9bcef7f4c59b078a836fa9d
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

  
Delivery method
Other

Comments