MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a3703cc485d2a99cfec122203ed2d7dd83274af8bd0b3bcfab3fd590dd5c308c. 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: | a3703cc485d2a99cfec122203ed2d7dd83274af8bd0b3bcfab3fd590dd5c308c |
|---|---|
| SHA3-384 hash: | a46d5bf873df5db8da98496adcd306022bde70d138e688253765a3d1ac7ba1ccc42c00ec84201f3958c490391030034f |
| SHA1 hash: | 391f2f157ddec18660fa5aa397618c4b44cbca0d |
| MD5 hash: | 765b1bb3690c9bacdfa38e18d788efbf |
| humanhash: | floor-tennessee-glucose-vermont |
| File name: | doc75843.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 251'853 bytes |
| First seen: | 2021-06-25 07:41:01 UTC |
| Last seen: | 2021-06-25 20:57:03 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b1a57b635b23ffd553b3fd1e0960b2bd (39 x Formbook, 29 x Loki, 27 x AgentTesla) |
| ssdeep | 6144:MTqjFAdWMbSChmll5dKk3jQXzk0KX03SfFnEx:MZdWuS3FBjQXzkVX0OEx |
| Threatray | 6'078 similar samples on MalwareBazaar |
| TLSH | 3A34121AB6D6E8FFDAAB90301D7AE33CF972D151431A590387805F37397260E862CA47 |
| Reporter |  JAMESWT_WT |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
3
# of downloads :
142
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
doc75843.exe
Verdict:
Malicious activity
Analysis date:
2021-06-25 07:43:11 UTC
Tags:
trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Detection(s):
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
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found 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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Process Start Without DLL
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Win32.Spyware.Noon
Status:
Malicious
First seen:
2021-06-25 02:09:18 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 6'068 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook rat spyware stealer trojan
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.currogpheasantshoot.com/bk2s/
Unpacked files
SH256 hash:
9edf1c4a917114023912e8859ddfbad96f75cef379e38be492db2e7a8af2bcff
MD5 hash:
50128c12d1684370428e286e6807844e
SHA1 hash:
ea2131d6ff85b7128b511e5fb351220200199a82
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1
MD5 hash:
56a321bd011112ec5d8a32b2f6fd3231
SHA1 hash:
df20e3a35a1636de64df5290ae5e4e7572447f78
SH256 hash:
a3703cc485d2a99cfec122203ed2d7dd83274af8bd0b3bcfab3fd590dd5c308c
MD5 hash:
765b1bb3690c9bacdfa38e18d788efbf
SHA1 hash:
391f2f157ddec18660fa5aa397618c4b44cbca0d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
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: | Formbook |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
| Rule name: | win_formbook_g0 |
|---|---|
| Author: | Slavo Greminger, SWITCH-CERT |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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