MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82d88dd569bc69a5e815a9a6a8db17deba4aee1822c934a83abaae753060b812. 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 6 File information Comments

SHA256 hash: 82d88dd569bc69a5e815a9a6a8db17deba4aee1822c934a83abaae753060b812
SHA3-384 hash: 25756d8d5a47aaa42c027f0e4e37ac607980ea95899fb5df2d073912eb91b7de293aa34395f23d428d1ef00ad69e7288
SHA1 hash: da52e7f72fb27f5290b0543c8c6d87e6534e2b4d
MD5 hash: 05255f7af4d93953f2cbdf97e1dbb875
humanhash: bulldog-fix-kilo-october
File name:82d88dd569bc69a5e815a9a6a8db17deba4aee1822c934a83abaae753060b812
Download: download sample
Signature Formbook
File size:999'424 bytes
First seen:2025-06-06 13:22:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:CwhggYliP8uahpeKqvBMexjgn9l5/4jyACllNQUBEPTCTjRIZ9fmV+LtUEhnalSx:/JPmlQGQgl5AC7NQOTjnEUEneq
Threatray 1'588 similar samples on MalwareBazaar
TLSH T16425DF0026A98A15C03947B00A50D2B11BB97D59762BE346FECE3DEBBF7A711478770B
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 13ccc8ccccc8cc13 (8 x Formbook, 3 x SnakeKeylogger, 1 x Loki)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
389
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
82d88dd569bc69a5e815a9a6a8db17deba4aee1822c934a83abaae753060b812
Verdict:
No threats detected
Analysis date:
2025-06-06 13:58:55 UTC
Tags:
netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
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, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses threadpools to delay analysis
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1708414 Sample: 2DWA3jjgAg.exe Startdate: 06/06/2025 Architecture: WINDOWS Score: 100 29 www.okay1.xyz 2->29 31 www.4x728z9yb.xyz 2->31 33 7 other IPs or domains 2->33 41 Suricata IDS alerts for network traffic 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected PureLog Stealer 2->45 49 5 other signatures 2->49 10 2DWA3jjgAg.exe 3 2->10         started        signatures3 47 Performs DNS queries to domains with low reputation 31->47 process4 file5 27 C:\Users\user\AppData\...\2DWA3jjgAg.exe.log, ASCII 10->27 dropped 59 Injects a PE file into a foreign processes 10->59 61 Uses threadpools to delay analysis 10->61 14 2DWA3jjgAg.exe 10->14         started        signatures6 process7 signatures8 63 Maps a DLL or memory area into another process 14->63 17 x79cGhuxcmwhun.exe 14->17 injected process9 process10 19 isoburn.exe 13 17->19         started        signatures11 51 Tries to steal Mail credentials (via file / registry access) 19->51 53 Tries to harvest and steal browser information (history, passwords, etc) 19->53 55 Modifies the context of a thread in another process (thread injection) 19->55 57 3 other signatures 19->57 22 VfiB6i1ZEf.exe 19->22 injected 25 firefox.exe 19->25         started        process12 dnsIp13 35 ztj54.top 103.148.186.188, 49691, 80 ASIANETGB unknown 22->35 37 www.okay1.xyz 13.248.169.48, 49697, 49698, 49699 AMAZON-02US United States 22->37 39 3 other IPs or domains 22->39
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2025-05-20 23:19:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
cc20d9969510195970a717f0ad43fe36afbba339e916e3d5946e2894d6924be7
MD5 hash:
6217d01f84e3d1414eea7d4a877fdaa3
SHA1 hash:
18e2a7f7e7415459e33e2da30cdef3e9cfc47eaa
SH256 hash:
da48cce7d24f8577861413314a28ddd6e92968219791fab30262272084872be4
MD5 hash:
3d7afbbf8e28609be42d37582fcb8343
SHA1 hash:
9462601815afc661ad9ab4f5dde9028c3959fd10
SH256 hash:
0709925e2f3599c1df8570c1cd6bcec21045dee33e15c666ae1eed2e63f90941
MD5 hash:
d74ef1ce47648332724053d4a86bd91a
SHA1 hash:
e935ff6399133e1d6a0a49e36a1d80f5ffd73675
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
262614606e7cac3a87e6418da97b1dcdf7f353c09010606cff80b7afcde9ff19
MD5 hash:
9e76cbe877281861b54ede21199f804d
SHA1 hash:
691daa120c08bf45bc9cfa8dfa32dc868dacb290
SH256 hash:
82d88dd569bc69a5e815a9a6a8db17deba4aee1822c934a83abaae753060b812
MD5 hash:
05255f7af4d93953f2cbdf97e1dbb875
SHA1 hash:
da52e7f72fb27f5290b0543c8c6d87e6534e2b4d
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments