MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051. 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
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SHA256 hash: a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051
SHA3-384 hash: ad76cbaf93ff8f4b85198de3da3843429ae5226328a633bfbfcd0bc63ebd5fff5479372bba28899094888026a66c93dc
SHA1 hash: 0c8b91117a2c72624f222fc106ff3dce17c62802
MD5 hash: ae06842a7b7b1ee1dc8f88c22394f81d
humanhash: south-mockingbird-triple-carolina
File name:PI.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:360'329 bytes
First seen:2021-04-01 05:40:56 UTC
Last seen:2021-04-01 07:07:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ced282d9b261d1462772017fe2f6972b (127 x Formbook, 113 x GuLoader, 70 x RemcosRAT)
ssdeep 6144:gqjIoz73M4xalb+/r/qS0uaue152Wd4RdmtcyT5ktic/QLayL/a:tXAp0mS0bn4RdmXWtea3
Threatray 4'486 similar samples on MalwareBazaar
TLSH B274D0676B3D9C63FFB5C1B0755703735FB1A428A26522073237D2926C522FA281B4AF
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PI.exe
Verdict:
Malicious activity
Analysis date:
2021-04-01 05:48:08 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/763b5567-4432-445e-abd7-74e0f96b2b53

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/130436/
Detection(s):
SecuriteInfo.com.Trojan.Siggen12.64198.2337.4646.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Sending an HTTP GET request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/661608
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 379738 Sample: PI.exe Startdate: 01/04/2021 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 5 other signatures 2->42 10 PI.exe 18 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\pnfegm1bc.dll, PE32 10->28 dropped 52 Detected unpacking (changes PE section rights) 10->52 54 Maps a DLL or memory area into another process 10->54 56 Tries to detect virtualization through RDTSC time measurements 10->56 14 PI.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.banejia.com 104.252.75.130, 49731, 80 EGIHOSTINGUS United States 17->30 32 www.validdreamers.com 17->32 34 3 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cmstp.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-03-31 20:32:46 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ulg7iuxyhkugydz23yzbz7aavhwtm4iienzaqgthzlmeujsjebiq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
024c67bdc81850f0d4acf648be1016358c78e21a74dbde96b0d753cffd76ffa7
Formbook
0953e54968ca9407a172c0a35a00d8b30ec603770809bbd2901a070e1b83b7f8
Formbook
1e107f01485dd3c413656b5e2d2fdb79166847cd8b3e5f6dc0bcf4895d530c39
Formbook
851ee4f67cc28e3634b0062d77f62222d026c4e9674a894bcdd5b6c6e6bda376
Formbook
8ac1fc19367861f3a749d801300f554148e36a0e8a4f4cce3c5d3e4de43e4279
Formbook
9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6
Formbook
adcc2671f1168261ceace2da6f28a79e0b3bc2f774fac1d79f4628f494951d24
Formbook
c1a40dbca9d28ac760447f501d812b82312be281ee699fdcc4a6a543077caa3d
Formbook
d0b2bc00645de803a4e9df303539995ee8f781631684b04fe67ee7e01bcf9c21
Formbook
d8e0edf1cca3b6edefcd830e233131c593997b5bd4454891dc1b70614862f718
Formbook
+ 4'476 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/210401-dn476ang6n/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
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
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.riceandginger.com/fcn/
Unpacked files
SH256 hash:
21545529fb874b2fc1bcbb85471826b2dc32a5a20c9494472bb2a0bbd1b3b6b6
MD5 hash:
eb4e4f7f62ecc6a773b3bb66794bf4aa
SHA1 hash:
c32f41e26bc15ce3303f31711cfb9368f4b14ff4
Link:
https://www.unpac.me/results/b07d4910-c319-482d-be33-ba56e8aa1455/
SH256 hash:
a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051
MD5 hash:
ae06842a7b7b1ee1dc8f88c22394f81d
SHA1 hash:
0c8b91117a2c72624f222fc106ff3dce17c62802
Link:
https://www.unpac.me/results/b07d4910-c319-482d-be33-ba56e8aa1455/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
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.

Malspam

Formbook

gz 930c5c7fcd3ffa2deb5038f6584a473160be303c40a4d6d4a16a958a118fc704

Formbook

Executable exe a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 930c5c7fcd3ffa2deb5038f6584a473160be303c40a4d6d4a16a958a118fc704
Cape
Cape
https://www.capesandbox.com/analysis/130436/

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