MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51f5fdc281853c063658dc0640f3069d474747dc056945b9c38343fcea6ff0f7. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: 51f5fdc281853c063658dc0640f3069d474747dc056945b9c38343fcea6ff0f7
SHA3-384 hash: 436e9d6c6f1647f01ecf32f9e674cdd6387330047f6cf9fd1567652ec63312633e1c49a7f759cf71a2c9872c35c6e85b
SHA1 hash: 795939199904a78b2e7e685f86d4c2e2f772e654
MD5 hash: 57f8df42e777e77b9df9c33e32ce93e0
humanhash: orange-nineteen-asparagus-louisiana
File name:Shipment Docs.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:546'816 bytes
First seen:2022-04-15 06:17:39 UTC
Last seen:2022-04-15 06:42:05 UTC
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:nSbSyDEOAXYKxkfJ/jjsnBy6SadFvZ+TxZeRd+hwwSPBCA6wGkS:nZyWjx+lMQzSJbwk
Threatray 14'709 similar samples on MalwareBazaar
TLSH T1A5C48C9C722072EFC86BC472DEA82C68EB51787B431B4213A42755ADEE5D897DF140F2
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
336
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Shipment Docs.exe
Verdict:
Malicious activity
Analysis date:
2022-04-15 06:20:45 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/0ba75fd1-6966-4f10-a635-dbeb197a5e65

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/263905/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.17515.677.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/62590e1beab80a7a6c19a516/reports/661565d2-ec5a-4988-8dcc-35e7135d8951/overview
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dc2125b2-a992-4b76-9c82-3f0d678953f1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/977279
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 609766 Sample: Shipment Docs.exe Startdate: 15/04/2022 Architecture: WINDOWS Score: 100 41 www.kvistuv.quest 2->41 43 www.hopeballoonfestival.com 2->43 45 2 other IPs or domains 2->45 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Multi AV Scanner detection for domain / URL 2->55 57 Found malware configuration 2->57 59 14 other signatures 2->59 11 Shipment Docs.exe 6 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\ISIFDCKhfOybHV.exe, PE32 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmp1D91.tmp, XML 11->37 dropped 39 C:\Users\user\...\Shipment Docs.exe.log, ASCII 11->39 dropped 63 Writes to foreign memory regions 11->63 65 Injects a PE file into a foreign processes 11->65 15 RegSvcs.exe 11->15         started        18 RegSvcs.exe 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Maps a DLL or memory area into another process 15->75 77 Sample uses process hollowing technique 15->77 79 Queues an APC in another process (thread injection) 15->79 22 explorer.exe 15->22 injected 81 Tries to detect virtualization through RDTSC time measurements 18->81 26 conhost.exe 20->26         started        process9 dnsIp10 47 j1.jump4geo.com 52.19.101.114, 49789, 80 AMAZON-02US United States 22->47 49 www.xpressporn.com 22->49 51 9 other IPs or domains 22->51 61 System process connects to network (likely due to code injection or exploit) 22->61 28 cmmon32.exe 22->28         started        signatures11 process12 signatures13 67 Modifies the context of a thread in another process (thread injection) 28->67 69 Maps a DLL or memory area into another process 28->69 71 Tries to detect virtualization through RDTSC time measurements 28->71 31 cmd.exe 1 28->31         started        process14 process15 33 conhost.exe 31->33         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/51f5fdc281853c063658dc0640f3069d474747dc056945b9c38343fcea6ff0f7/
Threat name:
Win32.Trojan.XLoader
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Status:
Malicious
First seen:
2022-04-15 04:56:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 41 (51.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kh273qubqu6amnsy3qdeb4ygtvduor64avuuloodqnb7z2tp6d3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
07ea6a87a1ac2a5363e7756a8994f7ed8b971b94cef918803ab3b6dbe9e6b845
Formbook
1a3d6220039a56a84858474245db02a8f5eb7b2e9a81db937c78cd799a89c4b2
Formbook
28ea165a38e4b7a0329fa0317161c9bfc25913b2596a55501e16ae5dc0424a78
Formbook
40fa9ba8113198bf73af0101d0c0275ed1ef014a15fd83457dbdbd29e80f99a8
Formbook
56ff8604dceaec4d26bce3f24a66180ab0deb00e648361b21698e9ab2f39eb6f
Formbook
6b765d70d97e0b3d8da0d871555d9d284bd08e85034ad45447bde1aadd2b2878
Formbook
71da5f67c97d46f0a0a6b6fccb0629690ff520c23e54e6c67b17f35c97cbf09b
Formbook
95c6926c4af01e7a782b16967a66b3c349f24a6ab2393b1a20c47e28a1ad7249
Formbook
ece61a7e1773aa3be279569c92cbc8c326005d86965cc60ce37a283efe262b0e
Formbook
+ 14'699 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:3e9r loader rat suricata
Link:
https://tria.ge/reports/220415-g2lkysheak/
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
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
Checks computer location settings
Blocklisted process makes network request
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/f40bbc67-106c-48e0-a459-0c7a397dc6ca/
SH256 hash:
51f5fdc281853c063658dc0640f3069d474747dc056945b9c38343fcea6ff0f7
MD5 hash:
57f8df42e777e77b9df9c33e32ce93e0
SHA1 hash:
795939199904a78b2e7e685f86d4c2e2f772e654
Link:
https://www.unpac.me/results/f40bbc67-106c-48e0-a459-0c7a397dc6ca/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/51f5fdc28185/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/51f5fdc281853c063658dc0640f3069d474747dc056945b9c38343fcea6ff0f7

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
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 51f5fdc281853c063658dc0640f3069d474747dc056945b9c38343fcea6ff0f7

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/263905/

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