MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dc43f74231ebd3a58840b47663f4f485351c4ba18f32e8a5880ce7865de4b53b. 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 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dc43f74231ebd3a58840b47663f4f485351c4ba18f32e8a5880ce7865de4b53b
SHA3-384 hash: 52d26e8faa6a59a3f944d2e5b3aa1cf648bb32cfab09d048d949cd232a1eb5482eb935383818eaaa19dfa5a943376958
SHA1 hash: 8e1570cf8c0fa9498d173fcba802a9a52973c0b8
MD5 hash: 42fa0ba88c85ed98496fd003c0cc3199
humanhash: massachusetts-vermont-diet-spring
File name:42fa0ba88c85ed98496fd003c0cc3199
Download: download sample
Signature Formbook
Create hunting rule
File size:230'164 bytes
First seen:2022-11-01 20:05:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 3072:qUJoFfWzzl+cSMJHCJkjEsubn/rlvybyc29eWYHtMYBqTOLGFT7m+mUWup20Q31s:qweEpJiJH5vyucpP1EqqFZE3ZGP
TLSH T16424126FB7E48873D89386724CB7F6A5EBB7426001016ACF0F711FD916A50C3A846393
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
417
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
RFQPurchase-Order11122.xlsx
Verdict:
Malicious activity
Analysis date:
2022-11-01 18:49:44 UTC
Tags:
encrypted trojan opendir exploit cve-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/9737cb84-46f9-4678-a592-4d25ab1f17f3

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/326908/
Detection(s):
SecuriteInfo.com.Variant.Fragtor.157218.19433.30499.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Searching for synchronization primitives
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/47288/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63617c2ab8952e91d3d251ab/reports/cd5edee4-6321-4aa0-a85b-1e467109918d/overview
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.
Malware family:
LockBit Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/81e9350f-d1d7-4de7-b213-c68bd271ec94
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1102789
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 735450 Sample: DAM6UM7lGP.exe Startdate: 01/11/2022 Architecture: WINDOWS Score: 100 32 www.deepakknair.com 2->32 34 deepakknair.com 2->34 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 3 other signatures 2->56 10 DAM6UM7lGP.exe 18 2->10         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\gujqzrio.exe, PE32 10->30 dropped 13 gujqzrio.exe 10->13         started        process6 signatures7 68 Antivirus detection for dropped file 13->68 70 Multi AV Scanner detection for dropped file 13->70 72 Maps a DLL or memory area into another process 13->72 16 gujqzrio.exe 13->16         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 16->42 44 Maps a DLL or memory area into another process 16->44 46 Sample uses process hollowing technique 16->46 48 Queues an APC in another process (thread injection) 16->48 19 explorer.exe 16->19 injected process10 dnsIp11 36 deepakknair.com 104.249.63.34, 49700, 80 TIER-NETUS United States 19->36 38 thearkdevelopments.com 178.32.173.220, 49707, 49708, 80 OVHFR France 19->38 40 6 other IPs or domains 19->40 58 System process connects to network (likely due to code injection or exploit) 19->58 23 wscript.exe 13 19->23         started        26 autochk.exe 19->26         started        28 autoconv.exe 19->28         started        signatures12 process13 signatures14 60 Tries to steal Mail credentials (via file / registry access) 23->60 62 Tries to harvest and steal browser information (history, passwords, etc) 23->62 64 Modifies the context of a thread in another process (thread injection) 23->64 66 Maps a DLL or memory area into another process 23->66
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dc43f74231ebd3a58840b47663f4f485351c4ba18f32e8a5880ce7865de4b53b/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-11-01 09:44:56 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
17 of 25 (68.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3rb7oqrr5pj2lccawr3gh5huqu2rys5br4zorjmibttymxpewu5q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:mgah rat spyware stealer trojan
Link:
https://tria.ge/reports/221101-yvd1zafecj/
Behaviour
Gathers network information
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
Executes dropped EXE
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5f6fa259-a782-471b-ae91-7c481a67fd93
Unpacked files
SH256 hash:
c3a1e5fdbe20dbf214ed658c337cd063633b4755ddb7e9e1c336cf1311d5476d
MD5 hash:
be47e300822a3da565863c59ea59b10d
SHA1 hash:
03092531345568edff698eac31af5cf7563e3846
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/c02602fa-4fd0-4f03-9689-8d3c9221b4e3/
Parent samples :
dc43f74231ebd3a58840b47663f4f485351c4ba18f32e8a5880ce7865de4b53b
3bac0715b2f1f0a408c7640ea62cea43789e92dc97caad6dfa206d6d805fb266
SH256 hash:
dc4339e34c5827dd19761e3b89a3a266706aca4199ccfbb1a8343842f0991cc3
MD5 hash:
0ecaf06a5c3e1e5846b930c7970197f3
SHA1 hash:
d6c58ba160e129914345b8a5095d891e3f538702
Link:
https://www.unpac.me/results/c02602fa-4fd0-4f03-9689-8d3c9221b4e3/
SH256 hash:
52c672b7038a03906984806ebd792d984577049424f95fab81eecfc6cf17975a
MD5 hash:
14f9458415108280815b8981edf071cd
SHA1 hash:
baed2a73a018aa2bc69fffb7df5d9d5eb0bcfcf9
Link:
https://www.unpac.me/results/c02602fa-4fd0-4f03-9689-8d3c9221b4e3/
SH256 hash:
c06a76b4b146cfa67e15e39c007e5bad1a8fd3d05a0f27f7e0ffc82ee995d667
MD5 hash:
49eb16b9a71b5af02167b37851f91c22
SHA1 hash:
7eeeba6b8466068f198328b5eaf17428c23db3dd
Link:
https://www.unpac.me/results/c02602fa-4fd0-4f03-9689-8d3c9221b4e3/
SH256 hash:
dc43f74231ebd3a58840b47663f4f485351c4ba18f32e8a5880ce7865de4b53b
MD5 hash:
42fa0ba88c85ed98496fd003c0cc3199
SHA1 hash:
8e1570cf8c0fa9498d173fcba802a9a52973c0b8
Link:
https://www.unpac.me/results/c02602fa-4fd0-4f03-9689-8d3c9221b4e3/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dc43f74231eb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
Link:
https://yomi.yoroi.company/submissions/dc43f74231ebd3a58840b47663f4f485351c4ba18f32e8a5880ce7865de4b53b

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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
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.

Web download

Formbook

Executable exe dc43f74231ebd3a58840b47663f4f485351c4ba18f32e8a5880ce7865de4b53b

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2395289/
Cape
Cape
https://www.capesandbox.com/analysis/326908/

Comments


Avatar
zbet commented on 2022-11-01 20:05:32 UTC

url : hxxp://107.172.44.177/200/vbc.exe