MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c25895e0fbdc51816a728ab69ee1173fda907bd04f3b912d1fb4475d9561ffc9. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: c25895e0fbdc51816a728ab69ee1173fda907bd04f3b912d1fb4475d9561ffc9
SHA3-384 hash: 0a5934cf68cc3d9074bceaed22c93b60765e03de87542336f6897363960057ce31bce2d839da656fa4fb04d7690b41a9
SHA1 hash: f7a4ecb958eb45357045bed0cb3d23eae716ff63
MD5 hash: 53999c37345c710229f021accebbef99
humanhash: blue-kitten-cold-kitten
File name:DHL DOC 3406506482.pdf.exe
Download: download sample
Signature Formbook
File size:680'448 bytes
First seen:2021-12-02 09:22:07 UTC
Last seen:2021-12-06 14:54:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'467 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:EwmLbwhRRT4Ys92uX2D2PJklYasfBPK/zheAGzw3gPn:VmLbwh3k9VPJklYasfBPkzhtGkk
TLSH T150E402B015E98D90F95E8938812DBB7629B9BD61055291F91E24FD22CF33341EF23A73
Reporter abuse_ch
Tags:DHL exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
172
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL DOC 3406506482.pdf.exe
Verdict:
Suspicious activity
Analysis date:
2021-12-02 09:39:56 UTC
Tags:
n/a

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
DNS request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspicious Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-12-02 03:30:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:g8dj rat spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.cuerpazoa30milpies.com/g8dj/
Unpacked files
SH256 hash:
196ce04167f6a3163b89a9838d9303c132a3aa63e4b11e3eae3a9a768473056e
MD5 hash:
3ce79f2538e949d9f1e01859682d00e6
SHA1 hash:
67773b154d104536b120c03c755feaf224e38380
SH256 hash:
1eba3e6e55f4aa87ee88dad11183f808f00870bf6277e3ae19fb31400a1dbe5b
MD5 hash:
00b620728472aef2af115e0455930cf8
SHA1 hash:
649a4ad0f13a3176ea36b855c1b36fbce246446a
SH256 hash:
c25895e0fbdc51816a728ab69ee1173fda907bd04f3b912d1fb4475d9561ffc9
MD5 hash:
53999c37345c710229f021accebbef99
SHA1 hash:
f7a4ecb958eb45357045bed0cb3d23eae716ff63
Malware family:
FormBook
Verdict:
Malicious
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: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 c25895e0fbdc51816a728ab69ee1173fda907bd04f3b912d1fb4475d9561ffc9

(this sample)

  
Delivery method
Distributed via e-mail attachment

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