MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eacbd3784763b4f97f35d08baa9c11c48fcb08fbec721f1d52543ce2d036d5f5. 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 6 File information Comments

SHA256 hash: eacbd3784763b4f97f35d08baa9c11c48fcb08fbec721f1d52543ce2d036d5f5
SHA3-384 hash: 29670b00cdf88db30926647baed1769356f4057de4add297d32bb075c63c5d9b5e53cbb87a8274ee7b4498ce160c2b98
SHA1 hash: b56c71db06593ca383cf9fa2e0530676d5729030
MD5 hash: 01109718913b283f37a11650892ec88a
humanhash: twenty-west-comet-california
File name:osburnzx.exe
Download: download sample
Signature Formbook
File size:1'140'736 bytes
First seen:2022-10-19 07:22:38 UTC
Last seen:2022-10-19 07:23:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:DxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxNuss5zjetwFY:8etwNjTlbv9Fdj
TLSH T1533528B922D0229FD426B1758593E9B362F77D226116D1C750C30FAFBC482BBDA12397
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 1031ccc4ccccaa10 (14 x Loki, 12 x SnakeKeylogger, 11 x Formbook)
Reporter efimenko917
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
osburnzx.exe
Verdict:
Malicious activity
Analysis date:
2022-10-19 07:26:21 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
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
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.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-10-19 07:43:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:u249 rat spyware stealer trojan
Behaviour
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
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
9c78480036afadd7dc79d267b0967fca4672a40aecf91be05e3c878f404157b8
MD5 hash:
18736fe8c13d202d91c1fed723963c13
SHA1 hash:
bc359d4c9bc12504d28acb89e9dafebb8db59233
Detections:
XLoader win_formbook_auto win_formbook_g0
SH256 hash:
1cf2a2eb97f461ea1ea54a5bd948587608c095800a760c1856d4af9c40446ed4
MD5 hash:
3c817f89bfb01143b5e78b4142a45170
SHA1 hash:
c9d4e798b80510ae70107061681923d2d175406c
SH256 hash:
9bdc421214ce7d91e7d66c888f048ee3d1fe271774352469ba7c0f8ed8a1aefc
MD5 hash:
03cf35c2c67f8a7e16b9564d7a065b46
SHA1 hash:
f9058e9b8bba13831713e37c74918f667b774bbd
SH256 hash:
4f0149681d39862276bfac566bd3f0f86a3441888dd2a5de00914a71318eb40b
MD5 hash:
7f7cbaf67d8820a7c4d4ebd41d31910f
SHA1 hash:
d15999dd03b2680e5c7a2280e545592bae4a9c9f
SH256 hash:
acc307df31535b7bfcc8039b4bf26ae71567fab6f78c8fcefab496d3f8302fe2
MD5 hash:
5c52fdce79c6038ffaa2d97ec0b4fdbc
SHA1 hash:
b6c5580a9ac77fdbb38d700036b3a6f559f5605b
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
SH256 hash:
eacbd3784763b4f97f35d08baa9c11c48fcb08fbec721f1d52543ce2d036d5f5
MD5 hash:
01109718913b283f37a11650892ec88a
SHA1 hash:
b56c71db06593ca383cf9fa2e0530676d5729030
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:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Comments