MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 676a4494049a119c4ec6850ed567244715cbc6ea5d2df2719c8e3875ddfd79d5. 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: 12


Intelligence 12 IOCs YARA File information Comments

SHA256 hash: 676a4494049a119c4ec6850ed567244715cbc6ea5d2df2719c8e3875ddfd79d5
SHA3-384 hash: 5573785b13878703f141ebd6dbdec300611042506678d983fc75a47ea139aa8b776f07ddf3ffbcaa810f59d522490598
SHA1 hash: 021c9583a8b947b4bec3d79eb7ebc35c0af95fc2
MD5 hash: f684f4411eb9c066894b9f521d6891db
humanhash: solar-spring-alabama-stairway
File name:IRQ210779799_pdf.exe
Download: download sample
Signature Formbook
File size:509'881 bytes
First seen:2022-02-28 06:41:24 UTC
Last seen:2022-02-28 08:47:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:8GicIF6KebwQ0rG1+RsMEHs1MDsMCUE/8ezgY3yW1uQfmeYPNgPKNFQBwyZcU7:vIFu10C1mAeuE0FYCe1meYPaKNFoa6
Threatray 11'132 similar samples on MalwareBazaar
TLSH T1C1B4CE7968B29A16F7F8D2313CE23B186526BC7F6CE98B0EC61A75E576330C16036531
File icon (PE):PE icon
dhash icon 6969d44c4cd46969 (1 x Formbook, 1 x Loki)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Sending a custom TCP request
Reading critical registry keys
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe 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.
Gathering data
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
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
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
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 dnsIp2 2 Behavior Graph ID: 579611 Sample: IRQ210779799_pdf.exe Startdate: 28/02/2022 Architecture: WINDOWS Score: 100 34 store-images.s-microsoft.com 2->34 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 9 other signatures 2->54 12 IRQ210779799_pdf.exe 18 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\lfmrubgzt.exe, PE32 12->32 dropped 15 lfmrubgzt.exe 12->15         started        process6 signatures7 64 Multi AV Scanner detection for dropped file 15->64 66 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->66 68 Tries to detect virtualization through RDTSC time measurements 15->68 70 Injects a PE file into a foreign processes 15->70 18 lfmrubgzt.exe 15->18         started        process8 signatures9 40 Modifies the context of a thread in another process (thread injection) 18->40 42 Maps a DLL or memory area into another process 18->42 44 Sample uses process hollowing technique 18->44 46 Queues an APC in another process (thread injection) 18->46 21 explorer.exe 18->21 injected process10 dnsIp11 36 www.lavishyummyinvite.quest 188.114.97.7, 49755, 80 CLOUDFLARENETUS European Union 21->36 38 www.seerefugee.com 21->38 56 System process connects to network (likely due to code injection or exploit) 21->56 25 svchost.exe 21->25         started        signatures12 process13 signatures14 58 Modifies the context of a thread in another process (thread injection) 25->58 60 Maps a DLL or memory area into another process 25->60 62 Tries to detect virtualization through RDTSC time measurements 25->62 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-02-28 01:51:39 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:s1m4 rat spyware stealer suricata trojan
Behaviour
Enumerates system info in registry
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
44118ef8c9bdc8cdbba322ce7ee0fa1a7da763b20f646114961b842b356d096e
MD5 hash:
fa1b2f774045620e6c63fb9fb1ec3a40
SHA1 hash:
ae5978ddbf081389d09522bd97508c6121875648
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
aa4190e2c90393d63a535ffabfa57e861b36c875390e01835e50f75cbd0b3272
MD5 hash:
322251ea889624b6672088aec61cc79a
SHA1 hash:
d54b2c60f66baad11a9e5330b0122e985fd53406
SH256 hash:
676a4494049a119c4ec6850ed567244715cbc6ea5d2df2719c8e3875ddfd79d5
MD5 hash:
f684f4411eb9c066894b9f521d6891db
SHA1 hash:
021c9583a8b947b4bec3d79eb7ebc35c0af95fc2
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

Formbook

Executable exe 676a4494049a119c4ec6850ed567244715cbc6ea5d2df2719c8e3875ddfd79d5

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments