MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f56e78fdd05ad22063c5d64f7852017ad8b8859015d420473917197dd7565403. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
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SHA256 hash: f56e78fdd05ad22063c5d64f7852017ad8b8859015d420473917197dd7565403
SHA3-384 hash: 38a8637edb351c5fbe50f81a73ccfbee2b74dbc299269df173eee5746ff7d0a02a7e1b98a10bdfb17ac4812f0119dbcf
SHA1 hash: 701e00fe1dac8626cb5cf2c4518e44d8ffa0cdc5
MD5 hash: 36a1418f1d78ac454106252aa0789525
humanhash: iowa-jupiter-stairway-nineteen
File name:PO No. 3400458286.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'213'440 bytes
First seen:2022-03-28 03:22:50 UTC
Last seen:2022-03-28 03:30:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:PfXtH45Was5lCJm4+vN14GYwlQpn3bo6ZQy2wy:PPtH455+Am4CN14sQh3NZQy2
Threatray 14'459 similar samples on MalwareBazaar
TLSH T192457CADB2F071EFC86BC175DAA81C68BA507C67970B4103902731AD9A7D987DF143B2
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/258305/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.15875.22184.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed
Link:
https://www.filescan.io/uploads/62412a18a19c6494129cddbf/reports/b4689e6b-8e01-49fd-8879-dbdebe7a33d2/overview
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/cf3daa9b-e93c-4089-8847-1f5f6300e4d6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/965466
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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
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)
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: Suspicious Double Extension
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 597947 Sample: PO No. 3400458286.pdf.exe Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 10 other signatures 2->40 11 PO No. 3400458286.pdf.exe 3 2->11         started        process3 file4 32 C:\Users\...\PO No. 3400458286.pdf.exe.log, ASCII 11->32 dropped 58 Injects a PE file into a foreign processes 11->58 15 PO No. 3400458286.pdf.exe 2 11->15         started        signatures5 process6 signatures7 60 Injects a PE file into a foreign processes 15->60 18 PO No. 3400458286.pdf.exe 15->18         started        21 PO No. 3400458286.pdf.exe 15->21         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 18->42 44 Maps a DLL or memory area into another process 18->44 46 Sample uses process hollowing technique 18->46 48 Queues an APC in another process (thread injection) 18->48 23 explorer.exe 18->23 injected process10 process11 25 raserver.exe 23->25         started        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       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f56e78fdd05ad22063c5d64f7852017ad8b8859015d420473917197dd7565403/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-03-28 03:23:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6vxhr7oqlljcay6f2zhxquqbplmlrbmqcxkcarzzc4mx3v2wkqbq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1378ae8590449eb1d4300a28ca1119097f5954ac6c54f99dc0d83d75d932da28
Formbook
1aa89074af39244a69ae04905a4f959cb59d567abbbb7ab76407c2fa34a8f59b
Formbook
31fcd3d5d4db88d5742905ad8c2717d6c107b246ff4423745c3bbaf8f66e1a7a
Formbook
502303edd5a9de57b3667146e84f15fc4957242ca2ef8f75f5e503946c452ee2
Formbook
67435ee3c6fd3d272c004256f34020df37fb93fd33c18720053b9d2c1bb19b67
Formbook
8e2fa281cc72512de1fc53eb27a9c04a524ce87c3cdf5932931ea3dc463a459a
Formbook
c68894e6a7551cdf34c082a0ba372f9544d07aee0f2d09dfb7fed3e664e91aaf
Formbook
da30dd86e912cbfcf0cb4306265cedf47604891dc868db7c59dd92d47ad32063
Formbook
da90895ec14c13c733ba3550194ab36a4c64130c5c2b2038c163dff0c505b3e3
Formbook
+ 14'449 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:nig8 loader rat
Link:
https://tria.ge/reports/220328-dxfx5afgf8/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
2da41f4fc1cd5fc3a03337115dbabafd5fad7cf6594118131ce8e17a9de53ed4
MD5 hash:
d21d65e25edcbc47b3e7bdae5269d7f7
SHA1 hash:
7da7c85b47cece322eec9a65e3fa9ac2eef354fe
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/72ac2e42-1b62-4603-83d5-9859c9bd3ed1/
Parent samples :
b8620affccaa451b93959f0a3e853a960ede3740148c7da1c52372938fcbdcb7
c9696f9d9f78c732a50860f2b9837d6527ad0f74dbd5bc44bc6446d3c51d7954
745df99008d9984e2af33ab01ee5a986a053996465d2c127ecc683e51ef0e3e6
1378ae8590449eb1d4300a28ca1119097f5954ac6c54f99dc0d83d75d932da28
f56e78fdd05ad22063c5d64f7852017ad8b8859015d420473917197dd7565403
SH256 hash:
bd523624496e18dfaf19e672764a841fc3092eea50de8e61feeaaf6b8d999b46
MD5 hash:
e9f73569434d81000703ec17f1727c1e
SHA1 hash:
ff0dfb092bfcb350331a5624caf5ba4148601473
Link:
https://www.unpac.me/results/72ac2e42-1b62-4603-83d5-9859c9bd3ed1/
SH256 hash:
9b7a376f428c50054bc039de32585dfc4ee081d713d74b878e9ee262f3dc687a
MD5 hash:
71e409a3b14ad211c96f132f9b7bff6c
SHA1 hash:
8ed6e40970a9b73ed7a55010a564e6ca36e04ba5
Link:
https://www.unpac.me/results/72ac2e42-1b62-4603-83d5-9859c9bd3ed1/
SH256 hash:
1378ae8590449eb1d4300a28ca1119097f5954ac6c54f99dc0d83d75d932da28
MD5 hash:
fe206e41e77bf87a50abe5d14ced79c3
SHA1 hash:
8a40340b17d44ee427273731021e1d3182011b93
Link:
https://www.unpac.me/results/72ac2e42-1b62-4603-83d5-9859c9bd3ed1/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/72ac2e42-1b62-4603-83d5-9859c9bd3ed1/
SH256 hash:
f56e78fdd05ad22063c5d64f7852017ad8b8859015d420473917197dd7565403
MD5 hash:
36a1418f1d78ac454106252aa0789525
SHA1 hash:
701e00fe1dac8626cb5cf2c4518e44d8ffa0cdc5
Link:
https://www.unpac.me/results/72ac2e42-1b62-4603-83d5-9859c9bd3ed1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/f56e78fdd05ad22063c5d64f7852017ad8b8859015d420473917197dd7565403

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: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 f56e78fdd05ad22063c5d64f7852017ad8b8859015d420473917197dd7565403

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/258305/

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