MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3a8899e360cb9fd54451cd9f766d83f7e073c47705b7f0f2c8d7aaedcbbca5dc. 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
| SHA256 hash: | 3a8899e360cb9fd54451cd9f766d83f7e073c47705b7f0f2c8d7aaedcbbca5dc |
|---|---|
| SHA3-384 hash: | 06d0161fdb91c8f1479667d037c75b5d925d535768e1f4327327eadfc60bc3f64de6e07ab295285edf2f59c5e566a441 |
| SHA1 hash: | cc2adca9663ad143ab9c02c5d78c02f50aca49a6 |
| MD5 hash: | c5164c0544a6e5cbc9c1ed28ab0addcd |
| humanhash: | cold-cola-mockingbird-green |
| File name: | yeni teklif.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'008'640 bytes |
| First seen: | 2022-03-23 19:01:44 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 24576:wr8MvRwDynnd+5fdJE3Ld+Yyr1ls2dJ4ddz:4UGdOGUYyxlDQdz |
| Threatray | 14'362 similar samples on MalwareBazaar |
| TLSH | T12F25238B25DC5B27D6790FFEA87695650B72E9176812EB8F8D9C12CD18033A0CB4173B |
| File icon (PE): |  |
| dhash icon | dadadadaa6a6a6a6 (12 x Formbook, 8 x AgentTesla, 5 x SnakeKeylogger) |
| Reporter |  GovCERT_CH |
| Tags: | exe FormBook xloader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Behaviour
Behavior Graph:
n/a
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-23 19:02:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 25 (76.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 14'352 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:nug3 loader rat suricata
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
c6b33a7a987a60a1281b14bb81798f7b91fcf177496f1af464a2d46ca78e114e
MD5 hash:
8c12a6b21b38e8983522b0029972a62c
SHA1 hash:
75832566457739be47524b8ec15aa4d7cbd312b5
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
8194fc03bd8e32f96d01baf75809268fe1a6f6a15f1110368b2f8dca7ef59df9
MD5 hash:
1f03a9f0504768c0f80ade21c2e7e1c6
SHA1 hash:
dab350b18dc164d368cd33f168cc85a99403a14b
SH256 hash:
dc5c057b0ee1eb079cf189762aac69f0d86338ea18795dc4fbf7ed9b5a45c2eb
MD5 hash:
4103ed94f4747b30e166cf3c25416f47
SHA1 hash:
d553a67056e94f60d621ca42dcecd6d93f9ef1ad
SH256 hash:
cb5645afb48aa17e35e185138da3fe429c898c606f6f416ee636f3a392db926f
MD5 hash:
a221dbfca3241293b917d7d3eef0c110
SHA1 hash:
9f53db3c02d70534e004d6fdf7a911f5411385fd
SH256 hash:
3a8899e360cb9fd54451cd9f766d83f7e073c47705b7f0f2c8d7aaedcbbca5dc
MD5 hash:
c5164c0544a6e5cbc9c1ed28ab0addcd
SHA1 hash:
cc2adca9663ad143ab9c02c5d78c02f50aca49a6
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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: | malware_Formbook_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.formbook. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Dropped by
xloader
Delivery method
Distributed via e-mail attachment
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