MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 83665b988b1a63b2d9eb4f3e3ef565f41a2871bfa2bf11d1e6ee62c8177f657d. 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: 15
| SHA256 hash: | 83665b988b1a63b2d9eb4f3e3ef565f41a2871bfa2bf11d1e6ee62c8177f657d |
|---|---|
| SHA3-384 hash: | f317ba58efe6731d287358cd7c398ffb790b383b3b9881f5fd23075b443fbf8cf6cfd371383c9884cb66abd36a5727b2 |
| SHA1 hash: | 7c96078eb1b80709974b4cc5e2d88fbb8ed4b132 |
| MD5 hash: | a9ca780bd1217cede486c527e19c70e8 |
| humanhash: | iowa-bluebird-carolina-spring |
| File name: | a9ca780bd1217cede486c527e19c70e8 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 960'000 bytes |
| First seen: | 2023-03-08 14:16:56 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger) |
| ssdeep | 24576:9EP78/1zHNIuiNbeauZvNWH0D1qECEbBPFHqqme:d5tUAvNWLmre |
| Threatray | 2'298 similar samples on MalwareBazaar |
| TLSH | T11215CF9973711573EC8F81B90927C5CF2C40F98B7611E237577B7A82E2591BF7A88222 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
AW8K393332.doc
Verdict:
Malicious activity
Analysis date:
2023-03-08 11:49:18 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
greyware packed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in 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
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:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-03-08 14:17:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
19 of 25 (76.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'288 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:p0qs rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
3825e94e453b868217caa5e20f622f30c6ac651392991d75c17ed0676656742f
MD5 hash:
369bcc49e2ac38be6078409176f55361
SHA1 hash:
2daee2e246d00e6ce1b7e5281f599dd506bbd92a
Detections:
FormBook
win_formbook_w0
win_formbook_auto
win_formbook_g0
SH256 hash:
b9c1e4296cd38786034e7a01e09a2828a9b92163dc5f1811c2db7620484099ad
MD5 hash:
a975137f712d0087d2a167779b069c0f
SHA1 hash:
b8a0fa9e7970a625f3b06991b9a330b54d898e92
SH256 hash:
d144989d8dc808c26338c65dcb3652f565f96aa77179ff16ac9e073d753efc8b
MD5 hash:
eb69edfa7caf70a70411d253ae805cb4
SHA1 hash:
5c9f3ecffc92a1cd63192b548978c52e69630ace
SH256 hash:
dd49948e0b3393a8b53084075ec2f2a8c36813d1ba1ca538697eb62ec4b4deae
MD5 hash:
538dab51e58b7dd3809664982f4d0746
SHA1 hash:
4e7f9615f1d96b087c453a72217662f867e0520d
SH256 hash:
bdfdd35260acde9ab14b83d96d8358a44234ecada6a84034d0aaf0a27df12ba0
MD5 hash:
4dae2e23856c7eb015225c3d714d3ff8
SHA1 hash:
30a41deb3d334a529fa6963a372cc11c2451a00a
SH256 hash:
83665b988b1a63b2d9eb4f3e3ef565f41a2871bfa2bf11d1e6ee62c8177f657d
MD5 hash:
a9ca780bd1217cede486c527e19c70e8
SHA1 hash:
7c96078eb1b80709974b4cc5e2d88fbb8ed4b132
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
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 |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
Comments
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