MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220
SHA3-384 hash: b66d6f7dd297191ac7e9022be6ab3c5062820a7b8374c7aed5827ee2c4ace3bde0880de8fcba6e8e436956fbe942470d
SHA1 hash: edc27955b5d2388c7a2b792721941d2c270eac5a
MD5 hash: 538af9b3eb449aaf53eeaf6ecf3c4037
humanhash: lithium-victor-winter-william
File name:triage_dropped_file
Download: download sample
Signature Formbook
Create hunting rule
File size:963'914 bytes
First seen:2021-10-25 11:05:36 UTC
Last seen:2021-10-25 12:18:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4688138aa56f51df0a1bf9af39c02fc8 (4 x Formbook, 2 x BitRAT, 1 x SpectreRAT)
ssdeep 6144:1rvbp65i101f72CZvota4g42XcgOA+sXdqe5Px9xxVjIkgk9cEPIbdZGeWeXI:1POf72eota4g42XiAjzbRb9LgbWehI
TLSH T1FF25A303BEC53A55C2C32AB0065AE938B6611A22141E9F577F6BCE11DAB1F4395F83F4
File icon (PE):PE icon
dhash icon cc74647470707569 (8 x Formbook, 1 x SpectreRAT, 1 x BitRAT)
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
216
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rtf_sospe.7z
Verdict:
Malicious activity
Analysis date:
2021-10-25 11:32:32 UTC
Tags:
opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/1023e7ea-61a5-46b6-9c07-bd0c759609d5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/199882/
Detection(s):
SecuriteInfo.com.Variant.Bulz.865987.3711.13400.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Possible injection to a system process
Stealing user critical data
Unauthorized injection to a system process
Deleting of the original file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/6176a3a6db358dd15ed932be/reports/fedc332d-15f7-4801-ad45-099f7352209d/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/31175cd8-d385-49fc-9746-6acbf7781576
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/876199
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 508628 Sample: triage_dropped_file Startdate: 25/10/2021 Architecture: WINDOWS Score: 100 34 www.gonzagacargo.com 2->34 36 gonzagacargo.com 2->36 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 3 other signatures 2->48 11 triage_dropped_file.exe 2->11         started        signatures3 process4 signatures5 58 Detected unpacking (changes PE section rights) 11->58 60 Tries to detect virtualization through RDTSC time measurements 11->60 62 Injects a PE file into a foreign processes 11->62 14 triage_dropped_file.exe 11->14         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 17 explorer.exe 14->17 injected process8 dnsIp9 28 alb-pl2-web.int-digi.com 5.101.39.11, 49860, 80 VIARTCOMRU Russian Federation 17->28 30 reshawna.com 192.0.78.25, 49784, 80 AUTOMATTICUS United States 17->30 32 16 other IPs or domains 17->32 38 System process connects to network (likely due to code injection or exploit) 17->38 40 Performs DNS queries to domains with low reputation 17->40 21 colorcpl.exe 17->21         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220/
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-10-25 08:42:47 UTC
AV detection:
20 of 45 (44.44%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3zb5626ulg2wv3am3bxaq46mbrnvk3qikr7cxhvhscbmitm3oiqa._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:fpdi loader persistence rat suricata
Link:
https://tria.ge/reports/211025-m7ex9aghfl/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Executes dropped EXE
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.walletwriter.space/fpdi/
Unpacked files
SH256 hash:
45993229b5148370f59d05e6068d94ddc7aaf8be8640e8a204bcedc8b42ca189
MD5 hash:
8e64a4f11754d9f7df4a44f4dd3510ea
SHA1 hash:
e720f346c00392a44d26f491864e330521ad8d9b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b5e80f57-4795-4cf8-9082-71bc6bf906d3/
Parent samples :
de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220
bc9c454602a2435a2a4acda216dcc014d4687417d3be4d5ca65a35b05659dafc
96816acd0abd28461e4c67cc569fbb5546caae7a0756668f0031109a8725b9a1
433494d21eabe777d1947da83d6281e5ac35bf98eea4791fcebf5e1561723384
SH256 hash:
de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220
MD5 hash:
538af9b3eb449aaf53eeaf6ecf3c4037
SHA1 hash:
edc27955b5d2388c7a2b792721941d2c270eac5a
Link:
https://www.unpac.me/results/b5e80f57-4795-4cf8-9082-71bc6bf906d3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/199882/

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