MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a99cc9a72844d9e0ae08307714e5541a19e3ba9a5e5fd24a8deff56303ae60a8. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a99cc9a72844d9e0ae08307714e5541a19e3ba9a5e5fd24a8deff56303ae60a8
SHA3-384 hash: eb5cb6aa7ded641ef8753e714450bf313eacb75b48b305cbdf4fcbba5b34b2c5139e9616e4c8efda639572cb6b252593
SHA1 hash: bd3d79b6fcd00f3c4638c5bc0afd9bfadb395f6f
MD5 hash: 2a87fe7c5112f193a03be441706a83fa
humanhash: autumn-hot-fifteen-monkey
File name:PURCHASE ORDER. ZIP.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:966'656 bytes
First seen:2021-06-09 14:51:58 UTC
Last seen:2021-06-09 15:52:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:tXBicUG6gUZ+tpV8hkJ43WNNJGxUch6nYd8:24W+LVm843uDGxUch/K
Threatray 5'674 similar samples on MalwareBazaar
TLSH FC25BF423144DD99E07B5BB254AFD52053F8BD4FC221C60D7E86B92A19F338222AF75E
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
290
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/165645/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.832.29002.25611.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7f1cc479-f6a8-4eb3-81f6-e045cc939781
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/799621
Signature
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
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 an obfuscated file name to hide its real file extension (double extension)
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: 432017 Sample: PURCHASE ORDER. ZIP.exe Startdate: 09/06/2021 Architecture: WINDOWS Score: 100 45 www.saveashow.com 2->45 47 www.anajoiasrj.com 2->47 49 2 other IPs or domains 2->49 55 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 10 other signatures 2->61 11 PURCHASE ORDER. ZIP.exe 7 2->11         started        signatures3 process4 file5 39 C:\Users\user\AppData\Local\...\tmp3DD7.tmp, XML 11->39 dropped 41 C:\Users\user\...\PURCHASE ORDER. ZIP.exe.log, ASCII 11->41 dropped 43 C:\Users\user\AppData\Roaming\ATYWqPbRf.exe, PE32 11->43 dropped 67 Injects a PE file into a foreign processes 11->67 15 PURCHASE ORDER. ZIP.exe 11->15         started        18 schtasks.exe 1 11->18         started        20 PURCHASE ORDER. ZIP.exe 11->20         started        signatures6 process7 signatures8 75 Modifies the context of a thread in another process (thread injection) 15->75 77 Maps a DLL or memory area into another process 15->77 79 Sample uses process hollowing technique 15->79 81 Queues an APC in another process (thread injection) 15->81 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        process9 dnsIp10 51 www.aladininternational.com 91.195.240.45, 49771, 80 SEDO-ASDE Germany 22->51 53 www.getridofmyed.xyz 104.21.37.73, 49757, 80 CLOUDFLARENETUS United States 22->53 63 System process connects to network (likely due to code injection or exploit) 22->63 65 Performs DNS queries to domains with low reputation 22->65 28 msiexec.exe 22->28         started        31 autoconv.exe 22->31         started        33 autoconv.exe 22->33         started        signatures11 process12 signatures13 69 Modifies the context of a thread in another process (thread injection) 28->69 71 Maps a DLL or memory area into another process 28->71 73 Tries to detect virtualization through RDTSC time measurements 28->73 35 cmd.exe 1 28->35         started        process14 process15 37 conhost.exe 35->37         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a99cc9a72844d9e0ae08307714e5541a19e3ba9a5e5fd24a8deff56303ae60a8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-06-09 03:43:31 UTC
AV detection:
22 of 46 (47.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vgomtjziitm6blqigb3rjzkudim6hou2lzp5esun572wga5omcua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
33af2b745b27ae79559ac323d88199f92aa9fe8bb4ffec0963d6f622ec17f24a
Formbook
53e1c28059f751b2b8ba98d5c6adcf3e028f3d2953d5355d452dfd30f0830af0
Formbook
800fc408d38c5b38f1877e30c612b4321e8fb0057ce28a923a19681fd351c5a2
Formbook
82de7428f30e703ae55105807dd3c3c19e2f8a377e7a5c2b925537a182d3a886
Formbook
9c1d6191badf084113871feba0049fac8a2bb5761136877383579cdcf7cd781a
Formbook
c69e54b704c7d7e94faa9c3ea2519eef344e1099aa99271833bc56cae00ab8af
Formbook
c96cb19ea3541a6591f2be3cfe048a63b84fcd538f023144df86694a34d06934
Formbook
e836c2aecd7a2ae83a5bb088780d9e7b8cd6c3a7ff6b9c3f1261bfd1f53dbef7
Formbook
e8be28fabd7cdb2d4e96137dae73bd9b227a86b654c696e9fd401cb37ec68267
Formbook
f10508b4bd982e597771e6128fede0b532c42cb799ac495c922940c27a942dbe
Formbook
+ 5'664 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210609-g1tmw1e5kn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.jzmbgjj.com/j7e/
Unpacked files
SH256 hash:
e987e066b6b1ca5c3698a367d405b671a7f33e388289cb6b191faf4796478596
MD5 hash:
8b3814abb5e9cd9fb5da34bc71a4afc2
SHA1 hash:
8005c030dd9d0c1f146d18c4597f0a0f55e16577
Link:
https://www.unpac.me/results/47b0452e-b25a-49a6-9299-83784b2813d2/
SH256 hash:
a99cc9a72844d9e0ae08307714e5541a19e3ba9a5e5fd24a8deff56303ae60a8
MD5 hash:
2a87fe7c5112f193a03be441706a83fa
SHA1 hash:
bd3d79b6fcd00f3c4638c5bc0afd9bfadb395f6f
Link:
https://www.unpac.me/results/47b0452e-b25a-49a6-9299-83784b2813d2/
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/a99cc9a72844d9e0ae08307714e5541a19e3ba9a5e5fd24a8deff56303ae60a8

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
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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 a99cc9a72844d9e0ae08307714e5541a19e3ba9a5e5fd24a8deff56303ae60a8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/165645/

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