MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dac74494f01d415ffd11b8d9dfc13b8910fd731ec1d2351d2c5115228d252cf0. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dac74494f01d415ffd11b8d9dfc13b8910fd731ec1d2351d2c5115228d252cf0
SHA3-384 hash: d2c577d7893b50fc89a22d148dc290d7ee73c9e6fde80845e486c11d87d94ed4d42358a65ba24ced76888c5bdc6493dd
SHA1 hash: a8feccdb2027578b76124779f751e809b0768fa7
MD5 hash: 3877030d64a737d072cd2aa352144262
humanhash: emma-carolina-robin-emma
File name:RFQ-576476566_0986666.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:425'984 bytes
First seen:2022-01-24 10:11:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:EsBmpbxugqBhOVzn0vx61O2v0GNOG/Fs3wD:Eumtxu5WmQQ2v0dGd
Threatray 9'641 similar samples on MalwareBazaar
TLSH T1DA94F1597298B17FC46BCE7AED601C60D3B4B4654327D343B84B229D9C4E39B8F11AB2
Reporter Yeeb_
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ-576476566_0986666.exe
Verdict:
Malicious activity
Analysis date:
2022-01-24 14:33:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cf23b3fc-47b4-47a0-aa05-09dabec75a93

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/221887/
Detection(s):
Win.Packed.Nanocore-9937493-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP 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
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Creating a window
DNS request
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
keylogger obfuscated packed
Link:
https://www.filescan.io/uploads/61ee7b77d32385db63276f8c/reports/b6960749-8b47-4c99-a4eb-136a4dc97f13/overview
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/d73b30ca-14e6-474a-8e2e-ba8ad38a0b3b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/926191
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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 signatures2 2 Behavior Graph ID: 558665 Sample: RFQ-576476566_0986666.exe Startdate: 24/01/2022 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 10 other signatures 2->52 10 RFQ-576476566_0986666.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\...\kYnjoBDWtvasi.exe, PE32 10->38 dropped 40 C:\...\kYnjoBDWtvasi.exe:Zone.Identifier, ASCII 10->40 dropped 42 C:\Users\user\AppData\Local\...\tmp30B9.tmp, XML 10->42 dropped 44 C:\Users\...\RFQ-576476566_0986666.exe.log, ASCII 10->44 dropped 54 Uses schtasks.exe or at.exe to add and modify task schedules 10->54 56 Adds a directory exclusion to Windows Defender 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 14 RFQ-576476566_0986666.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        21 RFQ-576476566_0986666.exe 10->21         started        signatures5 process6 signatures7 68 Modifies the context of a thread in another process (thread injection) 14->68 70 Maps a DLL or memory area into another process 14->70 72 Sample uses process hollowing technique 14->72 74 Queues an APC in another process (thread injection) 14->74 23 explorer.exe 14->23 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 process9 29 mstsc.exe 23->29         started        signatures10 60 Self deletion via cmd delete 29->60 62 Modifies the context of a thread in another process (thread injection) 29->62 64 Maps a DLL or memory area into another process 29->64 66 Tries to detect virtualization through RDTSC time measurements 29->66 32 cmd.exe 1 29->32         started        34 explorer.exe 2 155 29->34         started        process11 process12 36 conhost.exe 32->36         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dac74494f01d415ffd11b8d9dfc13b8910fd731ec1d2351d2c5115228d252cf0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-24 10:12:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3ldujfhqdvav77irxdm57qj3reip24y6yhjdkhjmkeksfdjfftya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
37182811d9f3a0a2b3126266dc70a5253c4745de7e18e75a4c29393fbdedb142
Formbook
3f383c683795d277510e0fb4c806ae17bfb33dd6ff875b66c159068e58c28818
Formbook
76d73723ac1e30fad92d7f3fdbb0a87c1d8854ad4e7d3d728805a3f26843085c
Formbook
838646bc9841804d7671fb25b3fd5d3e67e91c1d341c7125ce63ad436ada5f26
Formbook
a1d8420052bbdcaf3d318427bfe57edf5cc330fb14aaa5f4a597fac220c2a6de
Formbook
dac74494f01d415ffd11b8d9dfc13b8910fd731ec1d2351d2c5115228d252cf0
Formbook
fafcee9b031f24dbd150b43afbb5cac24bbdccfa4125f4f3017bdd8e94926e9e
Formbook
fdbca30c6db5b5bc5e1a954ce387deec23d7b77ff249ec916bcabb0a5faeb783
Formbook
ffdce32ce2f9c0f99abb5cff3602bcc02f3ceb4933d145fe02f650244b513a51
Formbook
fff77f3852a66a56bad4ec5bc1c1bc2afb0b08b8ea65393384a1ee6917dcb355
Formbook
+ 9'631 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b5ce loader rat suricata
Link:
https://tria.ge/reports/220124-l8h6maecal/
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
977cc4fc52a9f0f63b6d27a09122c42c47c97db3bc74266741708d531dd12cda
MD5 hash:
71d8759698de3bf958c18f7d9254b6a2
SHA1 hash:
04adf99e61c915eec781835d61d5b62eb648bf7d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/54cbca8a-d4cf-4288-980c-8d7d4f2ac5ad/
Parent samples :
231cab0d9c3afa139f96bea2795b3dfbc5fef29ceb23ff07bc85758d0f5f99e8
fe89695eea43cb30b74859db4063f1d079d86287503dc58e8778cff14828011c
dac74494f01d415ffd11b8d9dfc13b8910fd731ec1d2351d2c5115228d252cf0
SH256 hash:
7d6cc32b5e5b4ea18b7a88d37708b4fea00851b145af9700387e431e74d88c69
MD5 hash:
837beecbb0694f4ecb74315e86d4e6c0
SHA1 hash:
647d8b793d8d0d53b2ad637c3f5bf5c90a332b44
Link:
https://www.unpac.me/results/54cbca8a-d4cf-4288-980c-8d7d4f2ac5ad/
SH256 hash:
8325a5cf7942bb46ac528c836b79180c05d71a4e7de108693d303d56bcc5def1
MD5 hash:
efdf2c54a74297c24bc73285376c432b
SHA1 hash:
564f25afb6c5599cdcd5fafaff32c1475e581af4
Link:
https://www.unpac.me/results/54cbca8a-d4cf-4288-980c-8d7d4f2ac5ad/
SH256 hash:
dac74494f01d415ffd11b8d9dfc13b8910fd731ec1d2351d2c5115228d252cf0
MD5 hash:
3877030d64a737d072cd2aa352144262
SHA1 hash:
a8feccdb2027578b76124779f751e809b0768fa7
Link:
https://www.unpac.me/results/54cbca8a-d4cf-4288-980c-8d7d4f2ac5ad/
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/dac74494f01d415ffd11b8d9dfc13b8910fd731ec1d2351d2c5115228d252cf0

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 dac74494f01d415ffd11b8d9dfc13b8910fd731ec1d2351d2c5115228d252cf0

(this sample)

  
Dropping
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/221887/

Comments