MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35639b3ca5017c02df11acde7f6356e1d0894ed0eeab843ff8d42b2c2766aef6. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 35639b3ca5017c02df11acde7f6356e1d0894ed0eeab843ff8d42b2c2766aef6
SHA3-384 hash: 9429ee319418d29781809ba572ce4c902645aa7af9ff6ec939b0cc7e8a63d69575c21c650a3d943ddd03c2767ffb0cbb
SHA1 hash: b436a1606afc75e8aac3169d1989c693249fc6e1
MD5 hash: 5a05e5cf70d73f7377b58c914481a15c
humanhash: comet-blossom-echo-delta
File name:FYI Wrong IBANAccount No.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:714'240 bytes
First seen:2022-06-07 06:33:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:GqQohaBCpjKtAJtksOBY9ujL9fLBj4Jx9b2MKkseDdpbS:/Q2aBcjKtGksOBBjJfLBjY3CMKk5Hb
Threatray 16'967 similar samples on MalwareBazaar
TLSH T147E4E13077EA5248D97B5BB5083151C117BA3D6BBF04CA5D685A124CAC73B138F22BBB
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 10c0e0bc90909000 (12 x AgentTesla, 12 x Formbook, 7 x SnakeKeylogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
266
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
FYI Wrong IBANAccount No.exe
Verdict:
Malicious activity
Analysis date:
2022-06-07 06:50:26 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/f562b0e6-1e4c-4fab-a086-cbd226b68cc5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/277227/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.36914.29340.15874.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/629ef1618e867832d9e1c40e/reports/140a980d-9d20-487f-84cf-b5f582458a5f/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5a05156b-3e53-48be-b6ba-7ba6f7f5893c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1007851
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Snort IDS alert for network traffic
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
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 640345 Sample: FYI Wrong IBANAccount No.exe Startdate: 07/06/2022 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 12 other signatures 2->62 9 FYI Wrong IBANAccount No.exe 7 2->9         started        process3 file4 42 C:\Users\user\AppData\Roaming\ruLZpKtK.exe, PE32 9->42 dropped 44 C:\Users\...\ruLZpKtK.exe:Zone.Identifier, ASCII 9->44 dropped 46 C:\Users\user\AppData\Local\...\tmpFDC7.tmp, XML 9->46 dropped 48 C:\Users\...\FYI Wrong IBANAccount No.exe.log, ASCII 9->48 dropped 74 Adds a directory exclusion to Windows Defender 9->74 76 Injects a PE file into a foreign processes 9->76 13 FYI Wrong IBANAccount No.exe 9->13         started        16 powershell.exe 25 9->16         started        18 schtasks.exe 1 9->18         started        signatures5 process6 signatures7 78 Modifies the context of a thread in another process (thread injection) 13->78 80 Maps a DLL or memory area into another process 13->80 82 Sample uses process hollowing technique 13->82 84 Queues an APC in another process (thread injection) 13->84 20 rundll32.exe 18 13->20         started        24 explorer.exe 13->24 injected 27 conhost.exe 16->27         started        29 conhost.exe 18->29         started        process8 dnsIp9 38 C:\Users\user\AppData\...\LKAlogrv.ini, data 20->38 dropped 40 C:\Users\user\AppData\...\LKAlogri.ini, data 20->40 dropped 64 Detected FormBook malware 20->64 66 Tries to steal Mail credentials (via file / registry access) 20->66 68 Tries to harvest and steal browser information (history, passwords, etc) 20->68 72 3 other signatures 20->72 31 cmd.exe 2 20->31         started        50 blankwet.com 15.197.142.173, 49865, 49866, 80 TANDEMUS United States 24->50 52 www.kotonoha-tsu-0z0.com 160.251.71.157, 49765, 49766, 80 INTERQGMOInternetIncJP Japan 24->52 54 11 other IPs or domains 24->54 70 System process connects to network (likely due to code injection or exploit) 24->70 34 autochk.exe 24->34         started        file10 signatures11 process12 signatures13 86 Tries to harvest and steal browser information (history, passwords, etc) 31->86 36 conhost.exe 31->36         started        process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/35639b3ca5017c02df11acde7f6356e1d0894ed0eeab843ff8d42b2c2766aef6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-06 00:39:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gvrzwpffaf6afxyrvtph6y2w4hiistwq52vyip7y2qvsyj3gv33a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
033ca85b5ee9149729f8b709e5353501e3522d5749971ff3be8ac95802a89dd1
FormBook
2c87ef3a00fd0369ce619e38257acc09c8015f36b93babc8da79f57770e2a634
FormBook
32b97e5c27a96486e331b471db1c83b8a91bfe176a05394db0b5a18008468346
FormBook
701c8a49d43fddc123ff023f82f058a7c7657689379d00d114354b03817e837f
FormBook
85c4a7b05bef2a96564ca886c9f331dd36422bbbe59dde525924b7f6c91eb0dc
FormBook
d080a745b7938d247a21fe80650dd1e392eb37326882536a111a16acb6b49082
FormBook
d15b43031ec396a13c78b0e0bacf53458388fb7604a15756d951ab35a2a77a47
FormBook
eea75d9d65306b52b9b7846de5f4e2eb77851a2bd2d7cfc1a53cb7a5d800e726
FormBook
febe7e681d8183fc2a4761b32af63551a68a26cb1a7072ada9c89154fc36b93b
FormBook
+ 16'957 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ltr1 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220607-hbtpbabfg9/
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
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
Reads user/profile data of web browsers
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
2168aa4bc83d6af36735a04beac53a563f334b865be1d4d343a5f688da81f540
MD5 hash:
205fd3818fd7b768016d129dd5d2f108
SHA1 hash:
8c3b56874d23a256b521c03c534b624827e28192
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f1329a89-40f7-42ee-ac95-b3461a8902d3/
Parent samples :
fa2ca6d28bd365bebad538d2142ca9505173bf90f8572538a1268414a3b39aca
19a9ec9da618f09710fd8e6e1daec72377e05e78bd7469f33e203a9529d712fd
95bf56d45ed29648838e732b3ab2ba8f968b53d9b9fd7f6155498c958f09bf14
022beee80a1abf89283d6c5008a075efd3018a4c382a00165deb171e7702a32e
35639b3ca5017c02df11acde7f6356e1d0894ed0eeab843ff8d42b2c2766aef6
740cc8f312eef16d83b7c49fe33519ae293bf1c1c2f80e0482c34ea3a9473843
65c3708767175b438a938b8d5d4ae52a1d0cf450a38a4298a41ae9bd73816686
SH256 hash:
a5c594e5847d76fe3bb38541e65830363910a0a79eee6d0a0be575fe2f68d3c8
MD5 hash:
5b48d23afb6be49805484009a7969bea
SHA1 hash:
bc098e1b3e9167a5687759e7dfdf04c76c6d1150
Link:
https://www.unpac.me/results/f1329a89-40f7-42ee-ac95-b3461a8902d3/
SH256 hash:
39d1e286535555bd320cad0cefc53e54ee7d547f13c7a38ccb3a9ae714229d1e
MD5 hash:
b812af77a88651a43c4226e556e80d7b
SHA1 hash:
bbce4fb12eb8b83f4717ee908971b4ce02f3052f
Link:
https://www.unpac.me/results/f1329a89-40f7-42ee-ac95-b3461a8902d3/
SH256 hash:
8e88aaa9014d04b1ef25dbcda8ddd06017be33b89c185a0ef60e84ce07d4aa82
MD5 hash:
dbcd32a3fceab5491cf57ec1d665f4d2
SHA1 hash:
5805fb72ee86ee4420fd14790b29ee0651d35def
Link:
https://www.unpac.me/results/f1329a89-40f7-42ee-ac95-b3461a8902d3/
SH256 hash:
35639b3ca5017c02df11acde7f6356e1d0894ed0eeab843ff8d42b2c2766aef6
MD5 hash:
5a05e5cf70d73f7377b58c914481a15c
SHA1 hash:
b436a1606afc75e8aac3169d1989c693249fc6e1
Link:
https://www.unpac.me/results/f1329a89-40f7-42ee-ac95-b3461a8902d3/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/35639b3ca501/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/35639b3ca5017c02df11acde7f6356e1d0894ed0eeab843ff8d42b2c2766aef6

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.

Malspam

FormBook

Executable exe 35639b3ca5017c02df11acde7f6356e1d0894ed0eeab843ff8d42b2c2766aef6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/277227/

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