MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab77ccf41d38665285cbc2d460172cc15f9376fc3160da1f3d62e4b4368f439d. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab77ccf41d38665285cbc2d460172cc15f9376fc3160da1f3d62e4b4368f439d
SHA3-384 hash: 0a2a38175c9ff7edbf65fc552046906d95da5124a05a46c61651e34781e7eb94f4d85b6211d53ba323f8fa74c8f0cafa
SHA1 hash: b366dc6ad2b8a43d5eafd24c663a5bf49d5096df
MD5 hash: e59692425c37e528ffaf2ec13b815ca1
humanhash: william-seven-spring-item
File name:Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:645'632 bytes
First seen:2021-04-16 19:09:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:ymc6yQNHGAjo9Stxro5x2f4Zj35lZkCi04kTX9O7FqpbbYUw:ymDNmAjo9ero5xI4935lyCZHhO7FqpQ
Threatray 6'125 similar samples on MalwareBazaar
TLSH 54D4F1106A8CFB99D82C4BB2D864597012736313D75ADE1FE88E50D94EE1783F96C3A3
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
110
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice.exe
Verdict:
Malicious activity
Analysis date:
2021-04-16 19:12:45 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/0c4770f6-1c11-4f54-9810-9efdc5650250

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/136394/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.658-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Enabling autorun by creating a file
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/681681
Signature
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
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 389794 Sample: Invoice.exe Startdate: 16/04/2021 Architecture: WINDOWS Score: 100 40 www.856379765.xyz 2->40 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 9 other signatures 2->56 11 Invoice.exe 6 2->11         started        signatures3 process4 file5 34 C:\Users\user\AppData\Roaming\jBwBEJ.exe, PE32 11->34 dropped 36 C:\Users\user\AppData\Local\Temp\tmp6F7.tmp, XML 11->36 dropped 38 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 11->38 dropped 70 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->70 72 Uses schtasks.exe or at.exe to add and modify task schedules 11->72 74 Writes to foreign memory regions 11->74 76 Injects a PE file into a foreign processes 11->76 15 RegSvcs.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 78 Modifies the context of a thread in another process (thread injection) 15->78 80 Maps a DLL or memory area into another process 15->80 82 Sample uses process hollowing technique 15->82 84 2 other signatures 15->84 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 42 www.meemtee.com 109.70.26.37, 49727, 80 RU-CENTERRU Russian Federation 20->42 44 www.cameralogs.com 103.234.52.211, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Hong Kong 20->44 46 7 other IPs or domains 20->46 58 System process connects to network (likely due to code injection or exploit) 20->58 60 Performs DNS queries to domains with low reputation 20->60 62 Uses netsh to modify the Windows network and firewall settings 20->62 26 netsh.exe 12 20->26         started        signatures11 process12 dnsIp13 48 www.cameralogs.com 26->48 64 Modifies the context of a thread in another process (thread injection) 26->64 66 Maps a DLL or memory area into another process 26->66 68 Tries to detect virtualization through RDTSC time measurements 26->68 30 cmd.exe 1 26->30         started        signatures14 process15 process16 32 conhost.exe 30->32         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ab77ccf41d38665285cbc2d460172cc15f9376fc3160da1f3d62e4b4368f439d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-16 15:57:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vn34z5a5hbtffbolylkgafzmyfpzg5x4gfqnuhz5mlslinupiooq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
238dd9cb9b1c235e2babbc3f3b1372da8d76e4d94a4440776814957e0fd09f0b
Formbook
3803dec5e2ab718dedda091e9ee84b588545614ae3d54aa78d956cec21128fda
Formbook
3b70e4fc486e35f388db065ff8f187f55a820ccf8ce90f0e656ff55aaa0d5fdb
Formbook
43a2069e57baacb53de658addca8950b570ce19334cd6c617c4c1060f9296fb7
Formbook
4e5290b59d085d2d8492782191609fb2847e2f4a554b2ca48d1e7d7c86f6fb92
Formbook
5397f0168be76c7e5efee936d341eb359b9015af5e77631129dc0664105e9259
Formbook
6838e750e4d6b197819aedaeb8e0a183d5fb790da0d6d5e426d99f09bae758d9
Formbook
84f28d28b63ae57104a5840373d8debeec9be6886be4051e0bd965b1250dda90
Formbook
ae80c3c9ddf62e5b9b70e173c55b946db7a41aafee9bd645621157e05e9f95f4
Formbook
d0743e20f8ddf388b214bd59e11b36f000b423350c56c065133d533af64b4a00
Formbook
+ 6'115 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader evasion loader rat
Link:
https://tria.ge/reports/210416-43grr1nxg2/
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
Maps connected drives based on registry
Checks BIOS information in registry
Blocklisted process makes network request
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.trendyheld.com/edbs/
Unpacked files
SH256 hash:
aca66d16e84e78e046dc7c8b03a27df00872210f18ab8b9f193cfca62bb32301
MD5 hash:
6b1b08e77bdd1b8317f7f94c744ec35d
SHA1 hash:
b3f54acb575f47e92b139434db8a01ae66cd5ef5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/b6609d7d-735e-41c9-aa2f-247501436a52/
Parent samples :
84f28d28b63ae57104a5840373d8debeec9be6886be4051e0bd965b1250dda90
43a2069e57baacb53de658addca8950b570ce19334cd6c617c4c1060f9296fb7
ae80c3c9ddf62e5b9b70e173c55b946db7a41aafee9bd645621157e05e9f95f4
9eea2ae3f3200db886bf865381d62d7c4bf5415755cb4cc5ea8b055c94908c06
ab77ccf41d38665285cbc2d460172cc15f9376fc3160da1f3d62e4b4368f439d
SH256 hash:
ab1dfee308443ad40154fdc5f562d763bbf0188bb9bb922c5f6b15b6e8a20a29
MD5 hash:
aca97c1d94a488d2ca211b2abcef7d6b
SHA1 hash:
962a56dcd31d04c571faa787dc8f8f461f6045f2
Link:
https://www.unpac.me/results/b6609d7d-735e-41c9-aa2f-247501436a52/
SH256 hash:
fdccaed76f7279e6b8cc1579dadeed03fa1b8d1adcdfbcac585a68da168366d5
MD5 hash:
8b603b23caf00139206f293eb741a9f0
SHA1 hash:
1cc90aec7ce07b13930fe0c088fe3cd155b3ea07
Link:
https://www.unpac.me/results/b6609d7d-735e-41c9-aa2f-247501436a52/
SH256 hash:
ab77ccf41d38665285cbc2d460172cc15f9376fc3160da1f3d62e4b4368f439d
MD5 hash:
e59692425c37e528ffaf2ec13b815ca1
SHA1 hash:
b366dc6ad2b8a43d5eafd24c663a5bf49d5096df
Link:
https://www.unpac.me/results/b6609d7d-735e-41c9-aa2f-247501436a52/
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/ab77ccf41d38665285cbc2d460172cc15f9376fc3160da1f3d62e4b4368f439d

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/136394/

Comments