MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f79a020cedb43bbd1f4948a2566d081fed934d56f871741d2548f792e8800e7b. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: f79a020cedb43bbd1f4948a2566d081fed934d56f871741d2548f792e8800e7b
SHA3-384 hash: 468abc63f4d4ece12e27c7f93d160e7c2c0d58e4206595144c2edc87e92d83932cd1d0e78fe160cee8c841301ce28362
SHA1 hash: c9c29504bd24e3c7ac591ec1312e32a9c5623a3f
MD5 hash: 3e0ff29b04ce9b6ca93fe26eae5ea271
humanhash: romeo-mockingbird-maryland-beryllium
File name:Halkbank,pdf.exe
Download: download sample
Signature Formbook
File size:765'952 bytes
First seen:2023-01-25 10:21:59 UTC
Last seen:2023-01-26 07:17:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:k9posleqpoUIGApUa0h3hnzEcWjPX8UBhxE1q1feA+rsnKrFEcFXL1GH/h8:kEsMzG9Zhz0rDDxQq1febr
TLSH T158F4CFFC7794BD8FC0178F7A84542C006A60F4B35B43E383A05B16699A1EBDE9E506E3
TrID 59.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.6% (.SCR) Windows screen saver (13097/50/3)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 609e696169701000 (17 x AgentTesla, 5 x Formbook, 2 x SnakeKeylogger)
Reporter cocaman
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Halkbank,pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-01-25 04:51:35 UTC
Tags:
formbook xloader 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
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook 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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 791227 Sample: Halkbank,pdf.exe Startdate: 25/01/2023 Architecture: WINDOWS Score: 100 32 www.cbsht.com 2->32 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 6 other signatures 2->48 11 Halkbank,pdf.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\...\Halkbank,pdf.exe.log, ASCII 11->30 dropped 60 Tries to detect virtualization through RDTSC time measurements 11->60 62 Injects a PE file into a foreign processes 11->62 15 Halkbank,pdf.exe 11->15         started        signatures6 process7 signatures8 64 Modifies the context of a thread in another process (thread injection) 15->64 66 Maps a DLL or memory area into another process 15->66 68 Sample uses process hollowing technique 15->68 70 Queues an APC in another process (thread injection) 15->70 18 explorer.exe 6 6 15->18 injected process9 dnsIp10 34 www.fashion-clothing-40094.com 185.53.179.93, 49685, 80 TEAMINTERNET-ASDE Germany 18->34 36 www.andreasunshine.com 43.230.170.6, 49689, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK China 18->36 38 7 other IPs or domains 18->38 50 System process connects to network (likely due to code injection or exploit) 18->50 22 rundll32.exe 12 18->22         started        signatures11 process12 dnsIp13 40 www.38945.se 22->40 52 System process connects to network (likely due to code injection or exploit) 22->52 54 Modifies the context of a thread in another process (thread injection) 22->54 56 Maps a DLL or memory area into another process 22->56 58 Tries to detect virtualization through RDTSC time measurements 22->58 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-01-25 04:23:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
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:gg62 rat spyware stealer trojan
Behaviour
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
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
6c77b31c6b2754790d53cfd8e0a3033a8a503efefb0367ce48190ac8b8d748a1
MD5 hash:
866fc3c7864758e9253adba6ff9807cd
SHA1 hash:
ec1290dc87b04c822b9196298cb5a4fdd123a5d0
SH256 hash:
411569f9f0b865c651adc1234d23f86cd98fe5cd641704702276e9882be113b6
MD5 hash:
7648892096f37af50468509c5b051180
SHA1 hash:
a56a074c2770152761f6c4975db0e9f7d57f8cda
SH256 hash:
b72b8e1eba856b6648b1abcf0a228ba6292849b6e171e094b6d413ca254c77c7
MD5 hash:
0f3fe7736b0e0a732b0caa0d55b2c7ce
SHA1 hash:
a218e41f4ab0f3f4edfd94a73892092dd3749589
SH256 hash:
ab2f8dbc2b147528cecac6ea1a8886951c424be0b2026743b39d97f0cbabb04c
MD5 hash:
77ab42f4bbbf4565846eb8953192d71f
SHA1 hash:
3c662c756cc31867c0473716a74e777a65ced550
SH256 hash:
f79a020cedb43bbd1f4948a2566d081fed934d56f871741d2548f792e8800e7b
MD5 hash:
3e0ff29b04ce9b6ca93fe26eae5ea271
SHA1 hash:
c9c29504bd24e3c7ac591ec1312e32a9c5623a3f
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: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 f79a020cedb43bbd1f4948a2566d081fed934d56f871741d2548f792e8800e7b

(this sample)

Comments