MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ffeca3430402f8d3862b9fbed99a0d376828de09665b4feee38b7231098d9171. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ffeca3430402f8d3862b9fbed99a0d376828de09665b4feee38b7231098d9171
SHA3-384 hash: 49011a51a0e99404e5ed6120ca39cd81f47c2b9b3e403a9d62c089b2ede6ed6fd14c6cde9a5c81becca7096c3d2e3439
SHA1 hash: 63eeead54a8f863d7c1ada7fe268220b287c7761
MD5 hash: dbf11774539ddd5c5040aaa98a78d973
humanhash: thirteen-william-asparagus-freddie
File name:dbf11774539ddd5c5040aaa98a78d973.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'066'496 bytes
First seen:2021-12-07 12:51:13 UTC
Last seen:2021-12-07 15:18:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:yf33yyRysmgCqtcYTS7TnRk6nheWdeviSXEY1/LVfKL+:SysJCwSnnRk6hrdev3nC
Threatray 12'214 similar samples on MalwareBazaar
TLSH T1B03512BC39A327CED852C7B13729806816B67C32161BC1DDE06A328F1D3BB657563B16
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
QUOTE.xlsx
Verdict:
Malicious activity
Analysis date:
2021-12-07 11:36:31 UTC
Tags:
encrypted exploit CVE-2017-11882 trojan formbook stealer
Link:
https://app.any.run/tasks/912c211e-2406-40f1-89e7-256d84ad28ce

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/212140/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.30738.1304.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
Creating a file in the %temp% directory
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61af58f54d8e6f3a5e16f796/reports/47675704-edac-4086-ac91-265ebd26fc59/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9c7e2d42-8ff5-4191-8c3a-787b3e8e0153
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/903122
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
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
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 signatures2 2 Behavior Graph ID: 535599 Sample: udQrE4SI0w.exe Startdate: 07/12/2021 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 12 other signatures 2->52 10 udQrE4SI0w.exe 7 2->10         started        process3 file4 36 C:\Users\user\AppData\Roaming\yZccQGGxu.exe, PE32 10->36 dropped 38 C:\Users\...\yZccQGGxu.exe:Zone.Identifier, ASCII 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp7721.tmp, XML 10->40 dropped 42 C:\Users\user\AppData\...\udQrE4SI0w.exe.log, ASCII 10->42 dropped 56 Uses schtasks.exe or at.exe to add and modify task schedules 10->56 58 Adds a directory exclusion to Windows Defender 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 62 Injects a PE file into a foreign processes 10->62 14 udQrE4SI0w.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 72 Modifies the context of a thread in another process (thread injection) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Sample uses process hollowing technique 14->76 78 Queues an APC in another process (thread injection) 14->78 21 explorer.exe 14->21 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 dnsIp9 44 www.orfordcottage.com 8.214.44.119, 49824, 80 CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC Singapore 21->44 54 System process connects to network (likely due to code injection or exploit) 21->54 29 help.exe 21->29         started        signatures10 process11 signatures12 64 Self deletion via cmd delete 29->64 66 Modifies the context of a thread in another process (thread injection) 29->66 68 Maps a DLL or memory area into another process 29->68 70 Tries to detect virtualization through RDTSC time measurements 29->70 32 cmd.exe 1 29->32         started        process13 process14 34 conhost.exe 32->34         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ffeca3430402f8d3862b9fbed99a0d376828de09665b4feee38b7231098d9171/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-07 12:52:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=77wkgqyeal4nhbrlt67ntgqng5ucrxqjmznu73xdrnzdccmnsfyq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0123fdb2e8de200e6fa07cd5c254771143b7d9fea4f6895077b4f609fc5ae1cf
Formbook
045c15ef3a76b61d487b30e3e554c77afbc4f3fc17078d3818b5392de608a92e
Formbook
3ff28d4f5a5b236c660c2714bf1b5a515cf72cd738afea35b916938024644538
Formbook
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
7c7e7d1ad3f8afd0ffcba163bac7c1df9ceb8202a96a61b30b697569e00051b0
Formbook
90f9e8094fe8847f4b4521afafd5c5e59d4368ddc26a4f589730cd998520fd50
Formbook
9f59a9c7a38d8031c5b0829da6c4c10951b1de67adada4f567449d4b6ea8d83c
Formbook
fc8ec4a937b2d3276cdde946271549637951884db2c5ce2752715b37a75658cd
Formbook
+ 12'204 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:m25m rat spyware stealer trojan
Link:
https://tria.ge/reports/211207-p32ybscbb7/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.youduoji.com/m25m/
Unpacked files
SH256 hash:
5ac4691da3cb39500f898abd6aeb4826642206cf733fb629749f48c444d05dd4
MD5 hash:
de151fcbbbf806b305240e54a1e48953
SHA1 hash:
5ea76aab757f049347531a7ce86ce75147cef8c3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a178d272-bb88-4fca-8057-4a99ee61019d/
Parent samples :
ffeca3430402f8d3862b9fbed99a0d376828de09665b4feee38b7231098d9171
27b119bcaa4cbf8aa1724911fcf3e21917f0a4db830075cea3e5072fc525db32
SH256 hash:
f3388f773fdbe3e0a46c98ec11dbd567fbe75fec574739fa4b676eb47e5ec5f0
MD5 hash:
adc35238c0850b5f45d02c257045fd69
SHA1 hash:
21122534d94716420c9da50ca3ee01306d7d3d81
Link:
https://www.unpac.me/results/a178d272-bb88-4fca-8057-4a99ee61019d/
SH256 hash:
80855df0d7e7629d1f16cfecb7270f7db3ae6c1e32973803330862e531e69a53
MD5 hash:
2ee37952c40f8681eb58af6196d117da
SHA1 hash:
10f1c59089e1485b1440a47fbde89172dd000a29
Link:
https://www.unpac.me/results/a178d272-bb88-4fca-8057-4a99ee61019d/
SH256 hash:
ffeca3430402f8d3862b9fbed99a0d376828de09665b4feee38b7231098d9171
MD5 hash:
dbf11774539ddd5c5040aaa98a78d973
SHA1 hash:
63eeead54a8f863d7c1ada7fe268220b287c7761
Link:
https://www.unpac.me/results/a178d272-bb88-4fca-8057-4a99ee61019d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ffeca3430402/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/ffeca3430402f8d3862b9fbed99a0d376828de09665b4feee38b7231098d9171

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: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.

Web download

Formbook

Executable exe ffeca3430402f8d3862b9fbed99a0d376828de09665b4feee38b7231098d9171

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1862571/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/212140/

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