MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16cb5d00387369fa2bb69b16f39a62cd4dc4557324ac4202f466be7f6bec27d8. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 16cb5d00387369fa2bb69b16f39a62cd4dc4557324ac4202f466be7f6bec27d8
SHA3-384 hash: 4084cf7c4002a176ebfb4788eef7cfe438e60d474328ff5a9bb0b25d42e15828d1958d88f41f11f271da7188b927281e
SHA1 hash: 088b8dd5efa917b333e32755887534fbc23b96d0
MD5 hash: 20da0cd7af94c17e5d0f62dd8e71152e
humanhash: hamper-summer-island-comet
File name:AGG Orders No.76654746.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:257'897 bytes
First seen:2021-08-10 06:55:45 UTC
Last seen:2021-08-10 07:45:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 19abb3665ae1ff2bd877ad7bd730dcae (3 x Formbook, 2 x Loki, 1 x AgentTesla)
ssdeep 6144:sd53TvpHeIl09otSSAIAB15IIRWeVApXasSegXWm5wAUqrqcbX2e:sd53TvpHeIl09oYSTAB0IgSApqsdgGmh
Threatray 7'617 similar samples on MalwareBazaar
TLSH T191440212A71EC967C06344F261794A776AF737362B6F60EF4BC0182AF5119D1EA2072F
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
321
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AGG Orders No.76654746.exe
Verdict:
Malicious activity
Analysis date:
2021-08-10 06:59:52 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/d4134217-c667-4b82-a50e-10ff42700048

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/177820/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.46570.31635.28720.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
DNS request
Connection attempt
Sending an HTTP GET request
Unauthorized injection to a system process
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/47763705-2b5e-48db-a9e9-0472f28f5021
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/829945
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Process Start Without DLL
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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: 462376 Sample: AGG Orders No.76654746.exe Startdate: 10/08/2021 Architecture: WINDOWS Score: 100 34 www.inglesbrasileiro.com 2->34 36 inglesbrasileiro.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 11 other signatures 2->48 11 AGG Orders No.76654746.exe 2->11         started        signatures3 process4 signatures5 56 Maps a DLL or memory area into another process 11->56 14 AGG Orders No.76654746.exe 11->14         started        process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 28 www.tom-tours2020.com 217.160.0.222, 49766, 80 ONEANDONE-ASBrauerstrasse48DE Germany 17->28 30 www.interactivecommons.com 64.190.62.111, 49762, 80 NBS11696US United States 17->30 32 15 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 rundll32.exe 17->21         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/16cb5d00387369fa2bb69b16f39a62cd4dc4557324ac4202f466be7f6bec27d8/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-07-27 00:28:51 UTC
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=c3fv2abyonu7uk5wtmlphgtczvg4ivltesweeaxum27h627me7ma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5accccfe8695d78110cc9c27d79d56ac280879a0d874bb46c42c2a8baf7fe972
Formbook
829b0cf5a06a20d2a4ff31190f56d23ddc994ff8807bd12feebecc255afb0160
Formbook
9f019f0bf99f5d64605c844792ed965f8be65b9378404c8792311ba56edd83cc
Formbook
cff84e417e1483abc23bd1ff30bac2fda21a4e80f4dcc210130e3157a42299d2
Formbook
e4f6934778af90c9743606ba732f32121601a3b227f5e881eba31595e67a8a05
Formbook
f2e67fd733ca7d4c22f1bda695c89d4a3f8ddb4dbfd7afb7b2ee22dcb81bce47
Formbook
+ 7'607 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:fznn loader rat suricata
Link:
https://tria.ge/reports/210810-sjgq8e8lea/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Blocklisted process makes network request
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.designsbynandini.com/fznn/
Unpacked files
SH256 hash:
0c8124704d26c2c0065f1f2fd24384b2a44ca1512c56c49fa52e84aed2233527
MD5 hash:
b79f4bc90e22dc6b9fa3459809e8e720
SHA1 hash:
91d1f8f982b03ccb6d984c51fb19b6d0692514ce
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/dd7ba5f4-0846-421d-b02e-aaa380f0aa7a/
Parent samples :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 hash:
16cb5d00387369fa2bb69b16f39a62cd4dc4557324ac4202f466be7f6bec27d8
MD5 hash:
20da0cd7af94c17e5d0f62dd8e71152e
SHA1 hash:
088b8dd5efa917b333e32755887534fbc23b96d0
Link:
https://www.unpac.me/results/dd7ba5f4-0846-421d-b02e-aaa380f0aa7a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.13
Link:
https://yomi.yoroi.company/submissions/16cb5d00387369fa2bb69b16f39a62cd4dc4557324ac4202f466be7f6bec27d8

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.

Malspam

Formbook

Executable exe 16cb5d00387369fa2bb69b16f39a62cd4dc4557324ac4202f466be7f6bec27d8

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/177820/

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