MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aea2232a122d01c07c5d7e6a10ceef2d2ffa58c10812f95f965f17aa78e82efa. 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

SHA256 hash: aea2232a122d01c07c5d7e6a10ceef2d2ffa58c10812f95f965f17aa78e82efa
SHA3-384 hash: 8a28caac913782dd4e73e0dd9863041cb7083708ba392d57846b77a01e8993d13ed908ec4dd4f828d1b08619ee45a02e
SHA1 hash: 8b6186b24a5d90e3a99ccd622f95f04721e655ab
MD5 hash: f81447e76faf60daded8ca5b776450d8
humanhash: xray-cold-virginia-december
File name:IkDHN40T3PO2021.exe
Download: download sample
Signature Formbook
File size:732'672 bytes
First seen:2021-10-04 09:18:01 UTC
Last seen:Never
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:VzfUzfNi+hBr7IUADTIjRzS7I5nqYeZJkrIZXylqzKB1YDcGB:VTeNi+hBr8UAX4e7I5nF8tDN
Threatray 9'842 similar samples on MalwareBazaar
TLSH T1B7F49DD92EB493EBF71E01B8F5743B6813BA9824E597F2C6CA49F0F34036B544A10D96
File icon (PE):PE icon
dhash icon 4f4b484c4848414f (1 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IkDHN40T3PO2021.exe
Verdict:
Malicious activity
Analysis date:
2021-10-04 09:20:07 UTC
Tags:
trojan formbook

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 496175 Sample: IkDHN40T3PO2021.exe Startdate: 04/10/2021 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 8 other signatures 2->46 10 IkDHN40T3PO2021.exe 4 2->10         started        process3 file4 32 C:\Users\user\...\IkDHN40T3PO2021.exe.log, ASCII 10->32 dropped 58 Adds a directory exclusion to Windows Defender 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 14 IkDHN40T3PO2021.exe 10->14         started        17 powershell.exe 25 10->17         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 34 www.tiggaweb.com 19->34 36 www.namakdani.com 19->36 38 4 other IPs or domains 19->38 48 System process connects to network (likely due to code injection or exploit) 19->48 25 systray.exe 19->25         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 25->50 52 Modifies the context of a thread in another process (thread injection) 25->52 54 Maps a DLL or memory area into another process 25->54 56 Tries to detect virtualization through RDTSC time measurements 25->56 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-09-28 02:41:54 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:md1y rat spyware stealer trojan
Behaviour
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
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.ckskinclinic.com/md1y/
Unpacked files
SH256 hash:
a3329e417f3edd59b6829f79a04322954bc537e27b28938c34c44972c32f8bdf
MD5 hash:
9dbff774215c8bdc5dd7aa60a595fde5
SHA1 hash:
8a560535fadce614ecd632ccf53ee5d816a47e74
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
c678550f1635795be9acc3ad46aba654fa9a48583c59e1398bd3a5f3408c0771
MD5 hash:
6f697b1c7cc4577b24635fd7b6141d96
SHA1 hash:
6ff91e5ffedfcd09999dc6e4b90e7401a26d1112
SH256 hash:
6a671abf66304301602b4afd0902840bc3915455cffc58d8916eaa693abe33ec
MD5 hash:
681eca96e4e7b513317178dc7065ef39
SHA1 hash:
24af82015bc57d125f1ccb759840118b2283d1dc
SH256 hash:
93cfd5fb12f79febd66d1455604c82de4eaf6d3f1971bf40ea649cf248328cc9
MD5 hash:
e32da4f317f681478fd5ab441311c34d
SHA1 hash:
21a280c95db4efae44359ddc5d8d5d6a1f3f951f
SH256 hash:
aea2232a122d01c07c5d7e6a10ceef2d2ffa58c10812f95f965f17aa78e82efa
MD5 hash:
f81447e76faf60daded8ca5b776450d8
SHA1 hash:
8b6186b24a5d90e3a99ccd622f95f04721e655ab
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 aea2232a122d01c07c5d7e6a10ceef2d2ffa58c10812f95f965f17aa78e82efa

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments