MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 126716d242524dc742e3f6ac7c548c879501788d74f9280a2214594da270acaf. 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: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 126716d242524dc742e3f6ac7c548c879501788d74f9280a2214594da270acaf
SHA3-384 hash: 89f31b0bc1e89fea7b1299208d7f61de9f65a9a7cf83fe62bc5a2b81bfb58d640840190a152c7a6bbf7380ee95566d81
SHA1 hash: 87432e162d430f28b16ddd20a32a94bf01d5814c
MD5 hash: fe869cd682fadaaf86b90778ff2a4c5c
humanhash: comet-table-solar-whiskey
File name:nhullv40b8x.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:763'904 bytes
First seen:2025-04-23 12:25:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:9k+J/M+Jhewx/NscEQ+vgXK1HsaPw0P0gPFWaVICXp2iAV9CQZqyniKnc5RoM1+n:L/thewlqB6pP0P0SFXIbik9jrilD+uyv
Threatray 5'080 similar samples on MalwareBazaar
TLSH T148F4122C63AB855FC00A3FBC09407334D3FA6A917823E6931FA76D8CDD117955E8259B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon f0d4d4c4c4c4c4f0 (13 x AgentTesla, 10 x Formbook, 4 x Loki)
Reporter zhuzhu0009
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
468
Origin country :
RU RU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
attachment.rar
Verdict:
Malicious activity
Analysis date:
2025-04-23 11:14:36 UTC
Tags:
arch-exec formbook stealer netreactor xloader
Link:
https://app.any.run/tasks/6fa61049-88b1-47f8-910f-e6b43a69ec2d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/3692/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2082.19276.25844.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6808dd01a37ff28e1298957e
Tags:
trojan virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
entropy formbook obfuscated obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/6808dc3663be5be4c10f9aab/reports/97aa27be-4453-466d-8861-e9aa96adaa80/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILMamut
Link:
https://www.hybrid-analysis.com/sample/126716d242524dc742e3f6ac7c548c879501788d74f9280a2214594da270acaf
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/16a88794-7cd5-42fe-83e4-81583ee61491
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1672038
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious 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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1672038 Sample: nhullv40b8x.exe Startdate: 23/04/2025 Architecture: WINDOWS Score: 100 31 www.kodfest.click 2->31 33 www.ibm-crc.com 2->33 35 4 other IPs or domains 2->35 41 Suricata IDS alerts for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 9 other signatures 2->47 11 nhullv40b8x.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\nhullv40b8x.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 63 Switches to a custom stack to bypass stack traces 11->63 15 nhullv40b8x.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 2 other signatures 15->71 18 explorer.exe 36 1 15->18 injected process9 dnsIp10 37 www.aticco.ru 185.215.4.16, 49694, 80 TVHORADADAES Denmark 18->37 39 fondatorireverie.com 51.68.119.186, 49692, 80 OVHFR France 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 cmmon32.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 57 Switches to a custom stack to bypass stack traces 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/126716d242524dc742e3f6ac7c548c879501788d74f9280a2214594da270acaf
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/126716d242524dc742e3f6ac7c548c879501788d74f9280a2214594da270acaf/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-06-06 06:43:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cjtrnusckjg4oqxd62whyvemq6kqc6enot4sqcrccrmu3itqvsxq._file
Verdict:
malicious
Label(s):
unc_loader_028
Create hunting rule
formbook
Create hunting rule
Similar samples:
0c0001dfab0dc6cf87fc05e6752207cb13627722317885249e8840d335906d1a
Formbook
126716d242524dc742e3f6ac7c548c879501788d74f9280a2214594da270acaf
Formbook
1c8de42bff76a20cdaee2bed7629f8f0dfcf4ab5c7b5ee637d147f6f45311015
Formbook
1e42521ebdf483191d3df6d436b4a0a6ff0da8b384c364dbbcb8981d1b74b6d2
Formbook
261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a
Formbook
43af3e8acb9ddd2f5f99107a4b715b9ff684631e9d88847034b279b2a2621fc6
Formbook
bb4516e8454f9d4fdf43154349b28ce55350c730ea6dd247be3ee7babf5ed629
Formbook
d6254ba7494dc16f4b33c879f44fda381215ce53c01319e45f97a2b661e11cc2
Formbook
db137d45302d270f6d692114436cc3990125d96421ed3cce4118cfa3d0a737c5
Formbook
error
Formbook
f364037856ba668a59ccec86771c5f35e45d007192c79f63d83fec463f9d1ffe
Formbook
+ 5'070 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:cg62 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250423-pltwds1mz7/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3dc68eae-bf8b-4cae-a8f8-a7e1778a2b91
Unpacked files
SH256 hash:
126716d242524dc742e3f6ac7c548c879501788d74f9280a2214594da270acaf
MD5 hash:
fe869cd682fadaaf86b90778ff2a4c5c
SHA1 hash:
87432e162d430f28b16ddd20a32a94bf01d5814c
Link:
https://www.unpac.me/results/a23c6fd6-4358-498c-af7e-8577856e7259/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/126716d242524dc742e3f6ac7c548c879501788d74f9280a2214594da270acaf

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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.

anyrun
any.run
https://app.any.run/tasks/0eb53fd2-9c13-47e0-8c81-bc5ad0ca962a
Cape
Cape
https://www.capesandbox.com/analysis/3692/

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