MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85
SHA3-384 hash: 372369feaea41ff8e08671a0c662dd015585893de82e087218c1e067872be67e5dd8ffb4a35b775c778244f4679a109a
SHA1 hash: 7018766e2a1d2dca9395eb34ce9e307bc1d090ac
MD5 hash: 5b02cbae4cd3635ad1a147d7a72e5952
humanhash: golf-cup-mirror-lamp
File name:a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85
Download: download sample
Signature Formbook
Create hunting rule
File size:718'336 bytes
First seen:2025-11-06 10:45:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 21371b611d91188d602926b15db6bd48 (70 x Formbook, 33 x AgentTesla, 20 x RemcosRAT)
ssdeep 12288:Bz7hU5I5yuNHIgzSFKxWltRohBfSTso93Ue9v42PC7+pBZv+6QHSc1t7Q18rz:Bf+iN57Gtene322PC+zZ+6QHXA18X
TLSH T196E423E649C16A24D110A3348839CC94497C74716D2EB23F872DFA6E7C743C3AD6AB5E
TrID 39.1% (.EXE) UPX compressed Win32 Executable (27066/9/6)
38.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
7.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.9% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook UPX
File size (compressed) :718'336 bytes
File size (de-compressed) :1'224'704 bytes
Format:win32/pe
Unpacked file: e03e159d573b68aa625dca691d413def373bd3771cfe18d73b02aeb0e139419e

Intelligence

File Origin
# of uploads :
1
# of downloads :
66
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SOA 09 2025.zip
Verdict:
Suspicious activity
Analysis date:
2025-10-16 00:46:45 UTC
Tags:
arch-exec
Link:
https://app.any.run/tasks/34f8bd08-549b-46cc-a0e9-78751b953bc8

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/35873/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690c7c675a5ed7864e2374cc
Tags:
emotet virus spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Doina.Generic
Link:
https://www.hybrid-analysis.com/sample/a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-15T20:28:00Z UTC
Last seen:
2025-11-05T11:01:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/efec1446-6261-4684-92df-f3f27af4bded
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85
Verdict:
Malware
YARA:
5 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/5b02cbae4cd3635ad1a147d7a72e5952
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85/
Threat name:
Win32.Trojan.Autoitinject
Create hunting rule
Status:
Malicious
First seen:
2025-10-16 00:15:31 UTC
File Type:
PE (Exe)
Extracted files:
44
AV detection:
29 of 36 (80.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vefal5c2ag46ku735vycrhhgjgkk7szrrmi7yk6nht66hd5jhkcq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan upx
Link:
https://tria.ge/reports/251106-mtny1avraq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/93ca79b0-41e5-4741-a272-9d2bcadbd13c
Unpacked files
SH256 hash:
a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85
MD5 hash:
5b02cbae4cd3635ad1a147d7a72e5952
SHA1 hash:
7018766e2a1d2dca9395eb34ce9e307bc1d090ac
Link:
https://www.unpac.me/results/79c90d98-fc5c-4e96-8ca4-7b345639c228/
SH256 hash:
e03e159d573b68aa625dca691d413def373bd3771cfe18d73b02aeb0e139419e
MD5 hash:
c89bf2e22233dfd059c1df221da07c0e
SHA1 hash:
a00ac34a3ee9a89656d05134afa0b6b5b3efc136
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/79c90d98-fc5c-4e96-8ca4-7b345639c228/
Parent samples :
a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85
e03e159d573b68aa625dca691d413def373bd3771cfe18d73b02aeb0e139419e
SH256 hash:
80858ac79c0b8d117c58bf3bae85004fded91c812dd684274a9a7349730d9630
MD5 hash:
2efeda40bedf4271be629571de4798de
SHA1 hash:
67fe925769506d614f3c8d201f10cf44bc4b547e
Link:
https://www.unpac.me/results/79c90d98-fc5c-4e96-8ca4-7b345639c228/
SH256 hash:
909ca86f2920ea2d12b27f1368cdb8584dc542fb3bdc8758121512a9fbff4888
MD5 hash:
b4d7a507be074520de4e0af95615cc5a
SHA1 hash:
50b16eafd7e45dbe5dddda393b0a7694fcf54646
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/79c90d98-fc5c-4e96-8ca4-7b345639c228/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.91
Link:
https://yomi.yoroi.company/submissions/a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85

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_detect_tls_callbacks
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Formbook

Executable exe a90a05f45a01b9e553fbed70289ce64994afcb318b11fc2bcd3cfde38fa93a85

(this sample)

Formbook

Executable exe e03e159d573b68aa625dca691d413def373bd3771cfe18d73b02aeb0e139419e

Cape
Cape
https://www.capesandbox.com/analysis/35873/
  
Dropping
SHA256 e03e159d573b68aa625dca691d413def373bd3771cfe18d73b02aeb0e139419e
  
Dropping
MD5 c89bf2e22233dfd059c1df221da07c0e

Comments