MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4fa90d4fa0908b71eab4b5639465fc8e8c8933ede1e56941b5f65175e62bd09b. 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: | 4fa90d4fa0908b71eab4b5639465fc8e8c8933ede1e56941b5f65175e62bd09b |
|---|---|
| SHA3-384 hash: | b3c53924d85f6fe1edbf375ef7c0e9b65fffa2d8ba6f0355299f1b83c8bcff216a054c0ac3aa125b4e24f72c3b279a18 |
| SHA1 hash: | 7d8fecccd2bef2ff373f231032b6d3dcdbb04938 |
| MD5 hash: | 1fc555b7fcb6c2587e8a51c215f10dfe |
| humanhash: | jupiter-asparagus-winter-triple |
| File name: | 1fc555b7fcb6c2587e8a51c215f10dfe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 448'000 bytes |
| First seen: | 2021-11-12 13:12:53 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger) |
| ssdeep | 12288:SXaWtD00JByaO2GY3FsXNzVKZ7TZ3Koy:SjC0nyK10qKh |
| TLSH | T1FE94F16E3F54CE57D1364A3AC8EED45003FCB5096463C72A7FCC238FA9A134519A299E |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Detection(s):
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
obfuscated packed
Result
Verdict:
MALICIOUS
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
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
xloader
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-11 13:29:32 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
5/5
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:noha loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.mglracing.com/noha/
Unpacked files
SH256 hash:
13cc9a84257d734cdbe1107274b6e97fb8dac576f573e609604eab278261e774
MD5 hash:
82236add520c6d25912394c1d7091acc
SHA1 hash:
eed7e2d252162b8b76904e338026b317b42dcc35
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
SH256 hash:
a10064f99850f2d0d8f69dc5935fca9d3d0132c54c45e8f64830461bd93fbad8
MD5 hash:
d8538179c98c1471c1289160883f63ce
SHA1 hash:
a5854fcf5fdb81a74ec2b2ae46c0875478680ec4
SH256 hash:
4fa90d4fa0908b71eab4b5639465fc8e8c8933ede1e56941b5f65175e62bd09b
MD5 hash:
1fc555b7fcb6c2587e8a51c215f10dfe
SHA1 hash:
7d8fecccd2bef2ff373f231032b6d3dcdbb04938
Malware family:
XLoader
Verdict:
Malicious
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: | pe_imphash |
|---|
| 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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