MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1799e80fe0e05e3e784de5536df1713309a3b345ea3dbd920acfff477735afbd. 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


Intelligence 12 IOCs YARA 2 File information Comments
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SHA256 hash: 1799e80fe0e05e3e784de5536df1713309a3b345ea3dbd920acfff477735afbd
SHA3-384 hash: 0d087227608ce0856c9f757f8864ae9e9a08c9f96915f74d22e346304caadc374955503b7060fbaadcf983498310511b
SHA1 hash: 7543449dc103aead564723aef0dd6a1cbb8fb8fb
MD5 hash: c2172640d52b619a759296e77bb00a85
humanhash: arkansas-high-one-crazy
File name:triage_dropped_file
Download: download sample
Signature Formbook
Create hunting rule
File size:490'496 bytes
First seen:2022-05-05 00:44:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:cavCrNyzhj6Yo5DJ/zWHnnGwt2Fx8hyBum6AzX3sAIfBJ:p0NyzZ6YmDdknGwkeZ
TLSH T14BA46452D28AFDFAE00A45758C79F628081E976C51A5482B3D2D3806B5FB39371FEC1E
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon d88f8683c3869fd8 (1 x Formbook, 1 x ParallaxRAT)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
triage_dropped_file
Verdict:
Malicious activity
Analysis date:
2022-05-05 00:46:04 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/d0ee9bc3-85e6-4464-884b-3645dbd11f59

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/268736/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.17113.7055.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62731e1637afaeff09c373ee/reports/d9c46b1c-a1ce-4b14-81ef-847d62b0faca/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/03aa7fec-6bde-492e-952f-1eb6aed86f27
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/988150
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 620646 Sample: triage_dropped_file Startdate: 05/05/2022 Architecture: WINDOWS Score: 100 44 www.watchmyreview.com 2->44 46 watchmyreview.com 2->46 58 Snort IDS alert for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 7 other signatures 2->64 12 triage_dropped_file.exe 15 7 2->12         started        signatures3 process4 dnsIp5 48 toppnet.tk 192.185.174.179, 49760, 80 UNIFIEDLAYER-AS-1US United States 12->48 40 C:\Users\user\AppData\...oqoyzwwh.exe, PE32 12->40 dropped 42 C:\Users\user\...\triage_dropped_file.exe.log, ASCII 12->42 dropped 72 Creates an undocumented autostart registry key 12->72 17 MSBuild.exe 12->17         started        20 cmd.exe 1 12->20         started        file6 signatures7 process8 signatures9 50 Modifies the context of a thread in another process (thread injection) 17->50 52 Maps a DLL or memory area into another process 17->52 54 Sample uses process hollowing technique 17->54 56 2 other signatures 17->56 22 explorer.exe 17->22 injected 24 conhost.exe 20->24         started        26 timeout.exe 1 20->26         started        process10 process11 28 mstsc.exe 22->28         started        signatures12 66 Modifies the context of a thread in another process (thread injection) 28->66 68 Maps a DLL or memory area into another process 28->68 70 Tries to detect virtualization through RDTSC time measurements 28->70 31 cmd.exe 1 28->31         started        process13 process14 33 conhost.exe 31->33         started        process15 35 WerFault.exe 17 6 33->35         started        file16 38 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 35->38 dropped
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1799e80fe0e05e3e784de5536df1713309a3b345ea3dbd920acfff477735afbd/
Threat name:
Win32.Downloader.Seraph
Create hunting rule
Status:
Malicious
First seen:
2022-05-04 23:00:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
13 of 26 (50.00%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=c6m6qd7a4bpd46cn4vjw34lrgme2hm2f5i633eqkz77uo5zvv66q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220505-a326rsegh2/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
1799e80fe0e05e3e784de5536df1713309a3b345ea3dbd920acfff477735afbd
MD5 hash:
c2172640d52b619a759296e77bb00a85
SHA1 hash:
7543449dc103aead564723aef0dd6a1cbb8fb8fb
Link:
https://www.unpac.me/results/f4c8e08c-1eba-4fb1-95a5-57268ae5d747/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1799e80fe0e0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/1799e80fe0e05e3e784de5536df1713309a3b345ea3dbd920acfff477735afbd

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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

Formbook

Executable exe 1799e80fe0e05e3e784de5536df1713309a3b345ea3dbd920acfff477735afbd

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/268736/
  
URLhaus
https://urlhaus.abuse.ch/url/2178148/
  
Delivery method
Distributed via web download

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