MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4123e34ccee4506fdb642e75de44d8d91ce349dc286e5bc1df9ced77f2aac2c3. 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 File information Comments

SHA256 hash: 4123e34ccee4506fdb642e75de44d8d91ce349dc286e5bc1df9ced77f2aac2c3
SHA3-384 hash: 43d53f417711c201d53f99ad2a69e509160f472d6cce20cd46c996843452003280afb1d31e7f2f10fc28f0eb153785f9
SHA1 hash: 66a23d026d2e564130ed9d6ba709576addf2b6aa
MD5 hash: 2bb34fd2a90095c10d75aeeffa63233a
humanhash: table-magazine-queen-magnesium
File name:file
Download: download sample
Signature Formbook
File size:420'803 bytes
First seen:2022-11-21 15:22:07 UTC
Last seen:2022-11-21 16:46:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 6144:3Ea0w9eX6KKKKKKJEKPMlGWj6C/o0XB1ndKM9k9xs+6n5AP4frRJ+is0gUI:yX6KKKKKKjPMltj6rS7B+6nz1siNI
TLSH T19094BF9A95985195FCD56B372F2AED3387126F6898B8D48E13F87C2733BD383002159B
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)
File icon (PE):PE icon
dhash icon f4988aa6a68ad8d6 (16 x Formbook, 1 x NanoCore, 1 x Loki)
Reporter jstrosch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
RFQ FILES AND SAMPLE IMAGES.xls
Verdict:
Malicious activity
Analysis date:
2022-11-21 15:07:31 UTC
Tags:
macros opendir exploit cve-2017-11882 loader formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Sending a custom TCP request
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook overlay packed shell32.dll
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:
LockBit Ransomware
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 750981 Sample: file.exe Startdate: 21/11/2022 Architecture: WINDOWS Score: 100 28 www.wordnamy.site 2->28 44 Snort IDS alert for network traffic 2->44 46 Multi AV Scanner detection for domain / URL 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 5 other signatures 2->50 10 file.exe 18 2->10         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\Temp\yypfqq.exe, PE32 10->26 dropped 13 yypfqq.exe 10->13         started        process6 signatures7 62 Antivirus detection for dropped file 13->62 64 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->64 66 Maps a DLL or memory area into another process 13->66 16 yypfqq.exe 13->16         started        process8 signatures9 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Sample uses process hollowing technique 16->40 42 Queues an APC in another process (thread injection) 16->42 19 explorer.exe 16->19 injected process10 dnsIp11 30 www.jonquedragonpearl.com 156.254.66.97, 49712, 49713, 80 SKHT-ASShenzhenKatherineHengTechnologyInformationCo Seychelles 19->30 32 www.snzbx.com 23.82.252.195, 49710, 49711, 80 LEASEWEB-USA-LAX-11US United States 19->32 34 5 other IPs or domains 19->34 52 System process connects to network (likely due to code injection or exploit) 19->52 23 wlanext.exe 13 19->23         started        signatures12 process13 signatures14 54 Tries to steal Mail credentials (via file / registry access) 23->54 56 Tries to harvest and steal browser information (history, passwords, etc) 23->56 58 Modifies the context of a thread in another process (thread injection) 23->58 60 Maps a DLL or memory area into another process 23->60
Threat name:
Win32.Trojan.Woreflint
Status:
Malicious
First seen:
2022-11-21 15:23:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
26 of 40 (65.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:dqup rat spyware stealer trojan
Behaviour
Gathers network information
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
aa4463e5c44fc71ebdfae18a6d717df05fb6cbb235263f02c37bb9bbe895ad94
MD5 hash:
d61a155aca8dce3df9d5b1968e85af58
SHA1 hash:
8924c23b21d1e0acb6295385e64da9dcd6f870a4
SH256 hash:
9914a2bb1b0fe5dd784ac38c388a1f1c038d88eae4f18d48eb8ea49f25f68ebe
MD5 hash:
a1f0ecb8d990d8f257f9b0f8d316c038
SHA1 hash:
5e10900fa29fb20ae08d7e4097b96d164cd8b08b
SH256 hash:
4123e34ccee4506fdb642e75de44d8d91ce349dc286e5bc1df9ced77f2aac2c3
MD5 hash:
2bb34fd2a90095c10d75aeeffa63233a
SHA1 hash:
66a23d026d2e564130ed9d6ba709576addf2b6aa
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

Formbook

Executable exe 4123e34ccee4506fdb642e75de44d8d91ce349dc286e5bc1df9ced77f2aac2c3

(this sample)

  
Delivery method
Distributed via web download
  
Delivery method
Distributed via web download

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