MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 391f96154aa7c7d4f4616e3746a3a533652f64419f711c8510c99e01ffa78c61. 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: 9
| SHA256 hash: | 391f96154aa7c7d4f4616e3746a3a533652f64419f711c8510c99e01ffa78c61 |
|---|---|
| SHA3-384 hash: | 9537b000c10d4fe3ee49d04f2885d6f638b32735732196f796212368c9ebb20a0dbe3fba8bd9e569c3b1807bada8cc4e |
| SHA1 hash: | ee7f5e95ebca427b8b5baf712e7870a872d3f43f |
| MD5 hash: | d34101f0d1a192f78c01dc6d21a06741 |
| humanhash: | hawaii-salami-blue-whiskey |
| File name: | PO#252020.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 463'360 bytes |
| First seen: | 2020-09-25 05:52:46 UTC |
| Last seen: | 2020-09-26 02:12:46 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger) |
| ssdeep | 12288:mXpZ6txMYlJyR2/5KTB6ye9cOE0jsSbVAD8Ufl4b:4Gx8M/ZyCEUAD8Uflc |
| Threatray | 2'209 similar samples on MalwareBazaar |
| TLSH | C1A4CF145AE88F58E2BE5B78D4381C1487F3EA03D721EF9DFC9924B81B2AB91C911753 |
| Reporter |  GovCERT_CH |
| Tags: | FormBook |
Intelligence
File Origin
# of uploads :
3
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Benign windows process drops PE files
Disables Windows Defender (via service or powershell)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Swotter
Status:
Malicious
First seen:
2020-09-25 03:18:42 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'199 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
rat trojan spyware stealer family:formbook evasion
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Deletes itself
Windows security modification
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
Modifies Windows Defender Real-time Protection settings
Malware Config
C2 Extraction:
http://www.mscast03.info/cx0/
Unpacked files
SH256 hash:
391f96154aa7c7d4f4616e3746a3a533652f64419f711c8510c99e01ffa78c61
MD5 hash:
d34101f0d1a192f78c01dc6d21a06741
SHA1 hash:
ee7f5e95ebca427b8b5baf712e7870a872d3f43f
SH256 hash:
da89c54ad4b9992a254931ae4458087b4ddd81538e9fe0a309bc43430288d9ea
MD5 hash:
0cb07e29d44f67bbd5f87f7a8022aa38
SHA1 hash:
166015224438e17f92582ebbffb23f6a4f986ffb
SH256 hash:
897aaf3b174bad80d67a5aa2c23b6ba133800334bb255bcf04024d1e0be5679b
MD5 hash:
05fd0dd170ffcad27adb1c92cbed8e10
SHA1 hash:
5339422cdac397050aa3c9f6786bff43f40860e3
SH256 hash:
785261875049471f6432827571071af39fdb06ec0a223224c12792201a9f66e5
MD5 hash:
e41b095949e16c551511c80acfc18ac2
SHA1 hash:
c1c9299481d8604297151f48ac8c790c9e920504
SH256 hash:
5b3187cab1bcfdc847b20d3d07c93da63725524dca746e9360bbfa6cf74170ba
MD5 hash:
06e0a11653b9c898b692417b69e0bd9c
SHA1 hash:
9c797257b1b38e71d0a13467c1647754bb70dcc7
Detections:
win_formbook_g0
win_formbook_auto
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Dropped by
Formbook
Delivery method
Distributed via e-mail attachment
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