MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da8104e0d2273e9e8b1596e84a4e3671727e395b8790b2c1bec21d998bbda070. 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 4 File information Comments
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SHA256 hash: da8104e0d2273e9e8b1596e84a4e3671727e395b8790b2c1bec21d998bbda070
SHA3-384 hash: 5d52cf40ddbeee42635ac1fc67659ca91abd907fe20940b0f46c85220012f3bcc2a7cebe6080493e97427a7ed3e6cd16
SHA1 hash: 681674b4bb359c154b2b7f0210e1b97147c2a030
MD5 hash: 3d8d46ba3c2b66b7f3d04b4cc7c84bd9
humanhash: vegan-oklahoma-artist-california
File name:Tax payment invoice - Monday, November 29, 2021,pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:531'968 bytes
First seen:2021-11-29 13:46:21 UTC
Last seen:2021-11-30 08:02:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 12288:PpYcrq3cPewn+n7TOK4wuZuKYPDy1a84haHKy1:PpYcrbRo7X4XZXyDy16aHK
Threatray 10'026 similar samples on MalwareBazaar
TLSH T1A2B423A07258C36CCBA5A97180740D1216F56E872870D34DB2E1781D7EF3BC661B9AEF
File icon (PE):PE icon
dhash icon 0e0c052525162b2d (22 x Formbook, 22 x RemcosRAT, 17 x AgentTesla)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL Express shipping documents - 2930 November 2021!!,pdf(1).iso
Verdict:
Malicious activity
Analysis date:
2021-11-29 07:08:17 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/00096ea3-9048-4453-a215-82ba4c8ed36f

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
DNS request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a4d9d9bbfd2af97cba0c3a/reports/1cb880f8-d11e-47e4-887f-75f57963a15a/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/13f07b1c-5764-42a3-99fb-45575d7d0fdd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/897896
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 530375 Sample: Tax payment invoice - Monda... Startdate: 29/11/2021 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 9 other signatures 2->46 10 Tax payment invoice - Monday, November 29, 2021,pdf.exe 3 2->10         started        process3 file4 32 Tax payment invoic...9, 2021,pdf.exe.log, ASCII 10->32 dropped 13 Tax payment invoice - Monday, November 29, 2021,pdf.exe 10->13         started        16 Tax payment invoice - Monday, November 29, 2021,pdf.exe 10->16         started        process5 signatures6 60 Modifies the context of a thread in another process (thread injection) 13->60 62 Maps a DLL or memory area into another process 13->62 64 Sample uses process hollowing technique 13->64 66 Queues an APC in another process (thread injection) 13->66 18 explorer.exe 13->18 injected process7 signatures8 48 System process connects to network (likely due to code injection or exploit) 18->48 21 rundll32.exe 18->21         started        process9 signatures10 50 Self deletion via cmd delete 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 24 explorer.exe 5 153 21->24         started        28 cmd.exe 1 21->28         started        process11 dnsIp12 34 www.nipbaaifkqhctd.com 206.191.152.37, 49851, 80 VOXEL-DOT-NETUS United States 24->34 36 www.hkklsq.com 168.76.103.74, 49844, 80 ULTRANETSERVICOSEMINTERNETLTDABR South Africa 24->36 38 4 other IPs or domains 24->38 58 System process connects to network (likely due to code injection or exploit) 24->58 30 conhost.exe 28->30         started        signatures13 process14
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/da8104e0d2273e9e8b1596e84a4e3671727e395b8790b2c1bec21d998bbda070/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-29 01:28:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3kaqjygse47j5cyvs3ueutrwofzh4ok3q6ilfqn6yioztc55ubya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2152a980e864940db36cde90c649f66e7c2da15790e97703a28cb378fb7b5ca6
Formbook
26b24cfe3b0bb84b26fc83ce689b74728ac61f32391772dcc76eab04cc7042b5
Formbook
30c4d8cc68cc16af698b521cf9e31a8540f0c5cce8e2d66e874fc62a87dae393
Formbook
638394ba0aa51689488ddd944d4b358f02fde988c65842110bdc089e04e9f138
Formbook
6bce7b4a9dc4b092b2940ee941b8defdc5d60c56a57b2621aa3ac6b957e3cdfd
Formbook
9404982e0cf941d6103e40246a6689d91be00c03c8d9072e42ebf56bd9080492
Formbook
aea2232a122d01c07c5d7e6a10ceef2d2ffa58c10812f95f965f17aa78e82efa
Formbook
ceae18ab6ce271c2a6530479958c0ce5c5330988de8d93eefb7b4700ba22f22e
Formbook
e14df53adff2889344d4502133a00a389e06039715c26a7724ed3f046fc683a1
Formbook
fedeb19031bcc0941b0943dd3ed45ee6095b8c489c072c85e513b414abf8acf5
Formbook
+ 10'016 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s2h6 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211129-q3kjqacben/
Behaviour
Gathers network information
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.shinx.online/s2h6/
Unpacked files
SH256 hash:
a27bbcad1f4792bb3cb1d4cc9ae42cb0b50962d164e62e659330cceec56b3bde
MD5 hash:
cff28f8f742682070ff58147dfd185cb
SHA1 hash:
cdbc32275815ddf8deba764358c076619024906d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bd9fde43-498a-4525-95b9-c1c4453af377/
Parent samples :
da8104e0d2273e9e8b1596e84a4e3671727e395b8790b2c1bec21d998bbda070
c3b29ad97ad10528eed8dcedaf95dcb25b11fd860b6c2eb7999f924953bf5ae8
SH256 hash:
fbc5921ad7f2d31fb654bbfcb23059b4731a170817b8426b0758327ada0ce954
MD5 hash:
2626fd54ab4d2388f8b8782281db37fb
SHA1 hash:
94b8a189cbcf925d991e1d610cd3650b2de67236
Link:
https://www.unpac.me/results/bd9fde43-498a-4525-95b9-c1c4453af377/
SH256 hash:
b19104b568ca3ddccc2a8d3d10ecddb1ea240171e798dc3a486292cfa14b6365
MD5 hash:
7b0900da932f4ed9630d65b04422736d
SHA1 hash:
6fa340436e3a8e73ae2b3e911f861483183c68ef
Link:
https://www.unpac.me/results/bd9fde43-498a-4525-95b9-c1c4453af377/
SH256 hash:
da8104e0d2273e9e8b1596e84a4e3671727e395b8790b2c1bec21d998bbda070
MD5 hash:
3d8d46ba3c2b66b7f3d04b4cc7c84bd9
SHA1 hash:
681674b4bb359c154b2b7f0210e1b97147c2a030
Link:
https://www.unpac.me/results/bd9fde43-498a-4525-95b9-c1c4453af377/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/da8104e0d227/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/da8104e0d2273e9e8b1596e84a4e3671727e395b8790b2c1bec21d998bbda070

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
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.

Comments