MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 83b4f4fef30eb6e425229b53856cca35eca4a11ea3f5ef182a525444ba122661. 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: 8
| SHA256 hash: | 83b4f4fef30eb6e425229b53856cca35eca4a11ea3f5ef182a525444ba122661 |
|---|---|
| SHA3-384 hash: | a621dd9e9a3ae0d40752e80f5682a5a309d4bbd7d8f08df5da80511c836f65c1a555016f256058ddb16e50be54f81995 |
| SHA1 hash: | eb9c36fe09e522cac03f8cbef89431e59febdff3 |
| MD5 hash: | b61abd16261ec20ceedfad52d97256bd |
| humanhash: | montana-tango-green-may |
| File name: | re quotation.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 468'480 bytes |
| First seen: | 2020-11-05 09:32:33 UTC |
| Last seen: | 2020-11-05 11:51:57 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 6144:4mlRX31UfeihTG4BLWK36YaUsyRPXV0Vs3079M+e6kTU8qrh8bSde:Rcfeih1pWK6+syRND32RefUr |
| Threatray | 3'185 similar samples on MalwareBazaar |
| TLSH | 24A47DB9E995596EC95A027700654082B6B51FC67F6C8A1E30BEB30C0D327DFA713E4B |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
abuse_ch
Malspam distributing unidentified malware:HELO: slot0.medoche.gq
Sending IP: 173.82.104.40
From: Yong Kang Kwon <Info@727.sfjido.ml>
Reply-To: kelveneric88@gmail.com
Subject: Dabo Industry inquiry
Attachment: re quotation.gz (contains "re quotation.exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Detected FormBook malware
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)
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: Steal Google chrome login data
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2020-11-04 20:42:44 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'175 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Modifies Internet Explorer settings
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.wholesalebrands.xyz/mkr/
Unpacked files
SH256 hash:
83b4f4fef30eb6e425229b53856cca35eca4a11ea3f5ef182a525444ba122661
MD5 hash:
b61abd16261ec20ceedfad52d97256bd
SHA1 hash:
eb9c36fe09e522cac03f8cbef89431e59febdff3
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
SH256 hash:
f8bee4108a324df32ad5a2ebafa6b7f411402a21e2598cf9db66486970f80fdd
MD5 hash:
a92da98ff6f5ae608503d074617bcc2a
SHA1 hash:
d3eafcccca011bb3a7a5ae52dd9704ceafcde472
SH256 hash:
fabf4acefbe2e67157e21b86c63a5e9c1cff6eb7f6ce48d6935068e03d63e227
MD5 hash:
bf52cbaa9d1d2a2a95435ec6eb598c09
SHA1 hash:
266bddcd00b50aa7d4eb8044ff119c2cab7d1b3e
SH256 hash:
4bb08387c99d8a0cc1b17e858525780e2212e08eb8e9f6aeafc6f0e1d7131314
MD5 hash:
9db22d253073df4041b51a2f4b25444f
SHA1 hash:
3a9248af1d7f2ac705b2b3656a52d6efbfffd23f
SH256 hash:
f5cf2fd415daaec5afaf7eaa946347bb5f7650207096ba926cb20bc90c7e0598
MD5 hash:
15992cee40af76e748679b15aeeaa13c
SHA1 hash:
8300655c51ecb1bee0ca68f1f95a5e49258f9cb3
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
5a337358e702f4f79564a9c1ea727ceb6ca46552e7d1d8081e91a10810fc1871
MD5 hash:
16ec378afa48c3efe8bc2547e231717f
SHA1 hash:
b086e28c52a5c29579c07a171214c30a71a4aa7f
Please note that we are no longer able to provide a coverage score for Virus Total.
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.