MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac61c80f02e15eb3705836ff8dc9d81543eb0e26059d4aaa9b0895c716deafe4. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac61c80f02e15eb3705836ff8dc9d81543eb0e26059d4aaa9b0895c716deafe4
SHA3-384 hash: da26ed2aaccd2b49a2dd6c0c6accc7c40d00985e73fa695014261b0c74898c484dd6c0fdde1ef2eb2610e8bb1b8ffd3b
SHA1 hash: b30b0fd64696b601f08d05130dfcac418decadd8
MD5 hash: a8cf19b90b033ec838fb2f8087b547e6
humanhash: alpha-item-wisconsin-fanta
File name:Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'245'696 bytes
First seen:2023-03-21 18:21:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:IaanD27lNUYEKfjxAQ+f+4yHQLDqLyxi79Kbdi+sgIYF:IaanKEKfFAQ+trih0oIIY
Threatray 543 similar samples on MalwareBazaar
TLSH T12E457D462DBA20CEE8B74F18547A7E940B34F863EEC99137388676198FFD543A5063E1
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice.exe
Verdict:
Malicious activity
Analysis date:
2023-03-21 18:23:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/64379aa6-78e9-4467-aa0a-3a9feb0613f6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/6419f5ccc60b3295f52c6693/reports/1f7e9fd4-4cd2-4be0-b319-be9e9620b6bf/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ac61c80f02e15eb3705836ff8dc9d81543eb0e26059d4aaa9b0895c716deafe4
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/fe1237f4-558b-40c3-9f74-c159f62d83e2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1198803
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 831708 Sample: Invoice.exe Startdate: 21/03/2023 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 6 other signatures 2->54 8 Invoice.exe 7 2->8         started        12 avtZJvBWHs.exe 2 2->12         started        process3 file4 34 C:\Users\user\AppData\...\avtZJvBWHs.exe, PE32 8->34 dropped 36 C:\Users\...\avtZJvBWHs.exe:Zone.Identifier, ASCII 8->36 dropped 38 C:\Users\user\AppData\Local\...\tmp5497.tmp, XML 8->38 dropped 40 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 8->40 dropped 58 Uses schtasks.exe or at.exe to add and modify task schedules 8->58 60 Adds a directory exclusion to Windows Defender 8->60 14 RegSvcs.exe 8->14         started        17 powershell.exe 17 8->17         started        19 schtasks.exe 1 8->19         started        21 RegSvcs.exe 8->21         started        62 Antivirus detection for dropped file 12->62 64 Multi AV Scanner detection for dropped file 12->64 66 Machine Learning detection for dropped file 12->66 signatures5 process6 signatures7 68 Modifies the context of a thread in another process (thread injection) 14->68 70 Maps a DLL or memory area into another process 14->70 72 Sample uses process hollowing technique 14->72 74 Queues an APC in another process (thread injection) 14->74 23 explorer.exe 4 1 14->23 injected 27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        process8 dnsIp9 42 traumlichtfotografie.com 81.169.145.159, 49721, 49722, 49723 STRATOSTRATOAGDE Germany 23->42 44 www.42230.org.wcdnga.com 163.171.128.148, 49718, 49719, 49720 QUANTILNETWORKSUS European Union 23->44 46 19 other IPs or domains 23->46 56 System process connects to network (likely due to code injection or exploit) 23->56 31 systray.exe 13 23->31         started        signatures10 process11 signatures12 76 Tries to steal Mail credentials (via file / registry access) 31->76 78 Tries to harvest and steal browser information (history, passwords, etc) 31->78 80 Modifies the context of a thread in another process (thread injection) 31->80 82 Maps a DLL or memory area into another process 31->82
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ac61c80f02e15eb3705836ff8dc9d81543eb0e26059d4aaa9b0895c716deafe4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-03-21 03:45:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vrq4qdyc4fplg4cyg37y3soycvb6wdrgawouvku3bck4ofw6v7sa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
07843e27993206a92d9e0bfbb249332fcfedad068bec8f7f7f3f318654c7910c
Formbook
13c4ed220256fb2dfb95631c042d9eadf977bd2dc5e4aa0898ab99bd16d33ef7
Formbook
375023474e1cf7831eae2918f7dd925a8fbc310986a063a00d91a31a07f15f7c
Formbook
7fd5172067f790c21d11dc37987f04bbe9e4c04038074b788ac79bcc83c06f1a
Formbook
d1613f6ca68cdd7b490e9c42b1abc4b5c71aadf146977bdfc3f4d33d2d33159d
Formbook
+ 533 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230321-wzwqgaed6y/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Unpacked files
SH256 hash:
ef3c7bf77e06f90c5fee8f82de30d15cde347504601a2f4a4da5c808fda3d146
MD5 hash:
d721abd1774d5d25c516645d1613380b
SHA1 hash:
1d6ea57141f658bfbcbfa9f30cff02639897a9bd
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/37d06de0-df7e-4b38-8b2f-884b89034820/
Parent samples :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 hash:
c5f46eae4c3daf89f723d9a0ed54928319b429e8e6b7e090b6d9887a7f8ef56a
MD5 hash:
efb0011b5da4e019d914f3c0ab18f002
SHA1 hash:
0be02538e44f1a12f5b61d90c94f9bd20c562813
Link:
https://www.unpac.me/results/37d06de0-df7e-4b38-8b2f-884b89034820/
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
Link:
https://www.unpac.me/results/37d06de0-df7e-4b38-8b2f-884b89034820/
Parent samples :
495607b1aef01bf7dfb64b5cb16a8fc0f161c2923627d71c69de97328f8eca3f
2434aa78b46a3afc98fa6e888c3eb56278ba52b0ff800e7e875af9c2e7f9011a
SH256 hash:
000c0889c2d93807781cb5e2c212d07bd38c6fed9b738530f2515640306b5f44
MD5 hash:
8d369299a047f228593293887092e43d
SHA1 hash:
7e38cd87127c3ea59ddba80f7ddf35fb105a7f6c
Link:
https://www.unpac.me/results/37d06de0-df7e-4b38-8b2f-884b89034820/
SH256 hash:
e62df787ccb82f7cc91a0a545bf49d450d542010ef8b94d036cd12107b98e9e6
MD5 hash:
40f3dcb91894629b97f52dd61b396f9c
SHA1 hash:
386366cd6d4b3dadd6eac1f05a9be6e641bd330d
Link:
https://www.unpac.me/results/37d06de0-df7e-4b38-8b2f-884b89034820/
SH256 hash:
8edeeba6583a72c9708d8d268276ef0bee146de7d0782207ec23f0e2ba006379
MD5 hash:
4f2d25d09de5f0d5ea8cbc340a873433
SHA1 hash:
2d357e87bac58b42588254cb0419f0f4e1845dbb
Link:
https://www.unpac.me/results/37d06de0-df7e-4b38-8b2f-884b89034820/
SH256 hash:
ac61c80f02e15eb3705836ff8dc9d81543eb0e26059d4aaa9b0895c716deafe4
MD5 hash:
a8cf19b90b033ec838fb2f8087b547e6
SHA1 hash:
b30b0fd64696b601f08d05130dfcac418decadd8
Link:
https://www.unpac.me/results/37d06de0-df7e-4b38-8b2f-884b89034820/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac61c80f02e1/report/overview.html
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/ac61c80f02e15eb3705836ff8dc9d81543eb0e26059d4aaa9b0895c716deafe4

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
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