MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef7a82234bc0a09983ef1f01f4947b3b16e896168ab7415110cbfa5a8c1a4126. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef7a82234bc0a09983ef1f01f4947b3b16e896168ab7415110cbfa5a8c1a4126
SHA3-384 hash: d713b039452c36e0d40c6185b02fa1f81bea77b158a47cd3dbf038ee63bf6f821117106adfba4da2840f11ac127a5225
SHA1 hash: db27a3a22a1c5376a49ef0016bccdd9cac77eeeb
MD5 hash: 0d73ecb0398e6aca1bb2dd1798a9f0a4
humanhash: massachusetts-gee-georgia-mike
File name:BANK DETAILS AND INVOICE TO RECONFIRM.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:729'088 bytes
First seen:2022-01-12 04:05:46 UTC
Last seen:2022-01-12 05:55:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:qmdX9Ljffl03CVB3rhD2V8m7lKXXY4nnU9pAj9weR56k35:vlXK+B3JO9BwYCqp3a5
TLSH T1B5F4E10637FCCA03D1BE66B9C5EF902407B9BD5A6931CB9C2DC931CE58A1B914C4279B
File icon (PE):PE icon
dhash icon 00e6d0e74ecbcd23 (4 x Formbook, 4 x AgentTesla, 2 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BANK DETAILS AND INVOICE TO RECONFIRM.exe
Verdict:
Malicious activity
Analysis date:
2022-01-12 04:09:46 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/b2408061-fb6e-4a2d-926c-6809f4b180b3

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/218479/
Detection(s):
SecuriteInfo.com.Artemis0D73ECB0398E.31639.1684.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Gathering data
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/f6ddc7b6-6df0-4e85-a8c9-8feb24e2bdc8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/918879
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 dropped file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 551355 Sample: BANK DETAILS AND INVOICE TO... Startdate: 12/01/2022 Architecture: WINDOWS Score: 100 41 www.rockymountainleather.com 2->41 43 traff-5.hugedomains.com 2->43 45 hdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.com 2->45 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 14 other signatures 2->59 11 BANK DETAILS AND INVOICE TO RECONFIRM.exe 7 2->11         started        signatures3 process4 file5 37 C:\Users\user\AppData\...\neKXaAcRCFc.exe, PE32 11->37 dropped 39 C:\Users\user\AppData\Local\Temp\tmp628.tmp, XML 11->39 dropped 63 Adds a directory exclusion to Windows Defender 11->63 15 BANK DETAILS AND INVOICE TO RECONFIRM.exe 11->15         started        18 powershell.exe 24 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Maps a DLL or memory area into another process 15->75 77 Sample uses process hollowing technique 15->77 79 Queues an APC in another process (thread injection) 15->79 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 47 skillednft.com 162.144.20.18, 49816, 80 UNIFIEDLAYER-AS-1US United States 22->47 49 xn--220bn5b396a.com 14.128.150.98, 49815, 80 KIXS-AS-KRKoreaTelecomKR Korea Republic of 22->49 51 13 other IPs or domains 22->51 61 System process connects to network (likely due to code injection or exploit) 22->61 30 cscript.exe 22->30         started        signatures11 process12 signatures13 65 Self deletion via cmd delete 30->65 67 Modifies the context of a thread in another process (thread injection) 30->67 69 Maps a DLL or memory area into another process 30->69 71 Tries to detect virtualization through RDTSC time measurements 30->71 33 cmd.exe 1 30->33         started        process14 process15 35 conhost.exe 33->35         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef7a82234bc0a09983ef1f01f4947b3b16e896168ab7415110cbfa5a8c1a4126/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-01-12 04:06:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=555iei2lycqjta7pd4a7jfd3hmlorfqwrk3ucuiqzp5fvda2ieta._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:s6ap loader rat
Link:
https://tria.ge/reports/220112-en37qsbac9/
Behaviour
Creates scheduled task(s)
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
Deletes itself
Xloader Payload
Xloader
Unpacked files
SH256 hash:
3c1ba9de0677c2858a31b1c6fb76c62057fafea71b8a9c2ff590dc6b613042bc
MD5 hash:
1b366eb9312ece4f18476025575da330
SHA1 hash:
df395ed641c3c1af1e67ec8988c0784052cd40ac
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/037b687c-8d51-47e3-92eb-76d67ca74ec1/
Parent samples :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 hash:
70a4e3cca322cc9bd1fe3bdae460bc93b8fd19b30481bb53ccc4fbf408509e35
MD5 hash:
f162875c058939d50bc6565ae8dc769a
SHA1 hash:
e89cd81d617e7f1293ae736be40429c932b043d3
Link:
https://www.unpac.me/results/037b687c-8d51-47e3-92eb-76d67ca74ec1/
SH256 hash:
6d6255e43f8c15ac35d75832b1b8ac911010720326488ca424eee3e0566817c6
MD5 hash:
6fbeffefb041ca0248c2873f8f170127
SHA1 hash:
dc99780c9888bd4855c7fb8c75e95921ecd6a96a
Link:
https://www.unpac.me/results/037b687c-8d51-47e3-92eb-76d67ca74ec1/
SH256 hash:
96bf16b9598fe26153634d19e8b31732271590bfba2f929c3cb841ec03042c3d
MD5 hash:
80c69f23d8d802bef3fa69fa3c61d251
SHA1 hash:
c27f959cc193107603d15a23c231d46a2cf2511e
Link:
https://www.unpac.me/results/037b687c-8d51-47e3-92eb-76d67ca74ec1/
SH256 hash:
ef7a82234bc0a09983ef1f01f4947b3b16e896168ab7415110cbfa5a8c1a4126
MD5 hash:
0d73ecb0398e6aca1bb2dd1798a9f0a4
SHA1 hash:
db27a3a22a1c5376a49ef0016bccdd9cac77eeeb
Link:
https://www.unpac.me/results/037b687c-8d51-47e3-92eb-76d67ca74ec1/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ef7a82234bc0/report/overview.html
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/ef7a82234bc0a09983ef1f01f4947b3b16e896168ab7415110cbfa5a8c1a4126

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.

Malspam

Formbook

Executable exe ef7a82234bc0a09983ef1f01f4947b3b16e896168ab7415110cbfa5a8c1a4126

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/218479/

Comments