MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27ebfb9c8f82ef351acfd50cb434134cf6cfb3378baf389ab84e7f5a397ea3df. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: 27ebfb9c8f82ef351acfd50cb434134cf6cfb3378baf389ab84e7f5a397ea3df
SHA3-384 hash: be7a7e67167e4dc7692de1547fee22fe20938d454a3d4e28efd063ba738784f0d5e1787e970b90d1089c3a1807712f82
SHA1 hash: 920c0530a34d319ad8859238603f52a6a0c2ed63
MD5 hash: 9b63265c257167aa077e0155a7e9c301
humanhash: london-stairway-eight-uranus
File name:invoice and packing list.exe
Download: download sample
Signature Formbook
File size:602'112 bytes
First seen:2022-11-22 05:17:55 UTC
Last seen:2022-11-22 06:30:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:KJcjfm73MvYB8y0XYTGKChs686PXRsEvjwFVDJyyeVaae:KJcj+73MvYu9X8VChsj65soUFlWu
Threatray 17'180 similar samples on MalwareBazaar
TLSH T1E6D401AEB7D1DF20D6C42475C8E7563003F6E29F2673D3563A4412CA9E467D98C0ABCA
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter Anonymous
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
invoice and packing list.exe
Verdict:
Malicious activity
Analysis date:
2022-11-22 05:19:32 UTC
Tags:
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
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
clipbanker formbook 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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 751370 Sample: invoice and packing list.exe Startdate: 22/11/2022 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 11 other signatures 2->62 8 invoice and packing list.exe 7 2->8         started        12 wWUXiltcKjQd.exe 5 2->12         started        process3 file4 42 C:\Users\user\AppData\...\wWUXiltcKjQd.exe, PE32 8->42 dropped 44 C:\Users\...\wWUXiltcKjQd.exe:Zone.Identifier, ASCII 8->44 dropped 46 C:\Users\user\AppData\Local\...\tmpACCA.tmp, XML 8->46 dropped 48 C:\Users\...\invoice and packing list.exe.log, ASCII 8->48 dropped 72 Writes to foreign memory regions 8->72 74 Adds a directory exclusion to Windows Defender 8->74 76 Injects a PE file into a foreign processes 8->76 14 RegSvcs.exe 8->14         started        17 powershell.exe 21 8->17         started        19 schtasks.exe 1 8->19         started        78 Multi AV Scanner detection for dropped file 12->78 80 Machine Learning detection for dropped file 12->80 21 RegSvcs.exe 12->21         started        23 schtasks.exe 1 12->23         started        signatures5 process6 signatures7 84 Modifies the context of a thread in another process (thread injection) 14->84 86 Maps a DLL or memory area into another process 14->86 88 Sample uses process hollowing technique 14->88 90 Queues an APC in another process (thread injection) 14->90 25 explorer.exe 14->25 injected 29 conhost.exe 17->29         started        31 conhost.exe 19->31         started        33 conhost.exe 23->33         started        process8 dnsIp9 50 xn--29-oj9ik7b890b.net 50.87.192.144, 49696, 80 UNIFIEDLAYER-AS-1US United States 25->50 52 tucoachdevida.com 184.154.119.210, 49699, 49700, 80 SINGLEHOP-LLCUS United States 25->52 54 4 other IPs or domains 25->54 82 System process connects to network (likely due to code injection or exploit) 25->82 35 wscript.exe 13 25->35         started        38 WWAHost.exe 25->38         started        40 autofmt.exe 25->40         started        signatures10 process11 signatures12 64 Tries to steal Mail credentials (via file / registry access) 35->64 66 Tries to harvest and steal browser information (history, passwords, etc) 35->66 68 Modifies the context of a thread in another process (thread injection) 35->68 70 Maps a DLL or memory area into another process 35->70
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-11-17 03:38:47 UTC
File Type:
PE (.Net Exe)
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:cfvc rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
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
Loads dropped DLL
Formbook
Unpacked files
SH256 hash:
c2ad820dbdac7366053658108f6bc2f7c5e50f7116eada4da668e7aca5c5cc3d
MD5 hash:
4f11e28ebec79ccb4939086fa1bba6da
SHA1 hash:
b2e737b5185ed3b531064ecb5f61d8fb76aeb701
SH256 hash:
fd9fc82e01b2e9045588252614a7a695771ce9d269054c296b1129cc92d30865
MD5 hash:
ce3d9d033588f3b984bfaac5f54dd52e
SHA1 hash:
a255889eb009faafc1b2e29fccbbea9b153fcd4d
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
SH256 hash:
f7c79c310e4262255efee5eec32a83c2801ac8c0951f3a55268aaaeb0ea77abf
MD5 hash:
e74c320ef970878e9b32707ae6dc586e
SHA1 hash:
314b6ecdc761b1890603b249e112578acfdd3c5d
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
SH256 hash:
b1c850dc6520daa407c5c5427c2c4ccee26e2202dbe715f5c515ca873069f06c
MD5 hash:
99c99a03482a9a5ea231f22daa54fa64
SHA1 hash:
150427d968d022127d5c7bce56a8bab8fae498e8
SH256 hash:
27ebfb9c8f82ef351acfd50cb434134cf6cfb3378baf389ab84e7f5a397ea3df
MD5 hash:
9b63265c257167aa077e0155a7e9c301
SHA1 hash:
920c0530a34d319ad8859238603f52a6a0c2ed63
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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.

Malspam

Formbook

Executable exe 27ebfb9c8f82ef351acfd50cb434134cf6cfb3378baf389ab84e7f5a397ea3df

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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