MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3987ea55911d57e4f6e97332a95794f8d38465b521f5b27e0372a4598ed702b6. 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: 3987ea55911d57e4f6e97332a95794f8d38465b521f5b27e0372a4598ed702b6
SHA3-384 hash: d5bc5e37f5aa63f89b4df9c01dc6c4a7b51e76d8641919a285b71881dd2a0acbbf367d0cd927ec847cccc3d49970a72a
SHA1 hash: cd2bb3994df63ee4c7cc478c5d9ca04cb01a2d85
MD5 hash: a0c6b4cb7ba3c1cec049382ea25a1617
humanhash: emma-social-november-idaho
File name:IN02672Q0473764INBOM.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:620'032 bytes
First seen:2022-03-28 18:18:01 UTC
Last seen:2022-03-29 11:16:16 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:R+penQbvdc/gjjErzsybEv2nhLlM/rH++vUVGZCjMXZ1FF:gpenQbVc/gjjE8enhJM/rH++7ZqMXZh
Threatray 14'628 similar samples on MalwareBazaar
TLSH T125D49D32E3F86E57D07A43F85420D0253BE69B46A228D645BDF625A7E5F27C24C62F03
File icon (PE):PE icon
dhash icon 3e3d697e3c3c1f1f (11 x AgentTesla, 7 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
3
# of downloads :
232
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/258738/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.222.17475.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
Link:
https://www.filescan.io/uploads/6241fbe01f20423948442b1f/reports/3159fc96-8ecd-4290-b7f4-c3a8daffc7e5/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/48131366-b6ac-4e3c-954b-ced30eb9fee1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/966111
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found 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)
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
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 dnsIp2 2 Behavior Graph ID: 598603 Sample: IN02672Q0473764INBOM.exe Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 31 www.syllyl.com 2->31 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 7 other signatures 2->41 11 IN02672Q0473764INBOM.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\...\IN02672Q0473764INBOM.exe.log, ASCII 11->29 dropped 51 Tries to detect virtualization through RDTSC time measurements 11->51 53 Injects a PE file into a foreign processes 11->53 15 IN02672Q0473764INBOM.exe 11->15         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.disignmagazine.com 154.81.67.170, 49797, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 22 msiexec.exe 18->22         started        signatures11 process12 signatures13 45 Self deletion via cmd delete 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3987ea55911d57e4f6e97332a95794f8d38465b521f5b27e0372a4598ed702b6/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-03-28 15:27:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
19 of 26 (73.08%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hgd6uvmrdvl6j5xjomzksv4u7djyiznveh23e7qdoksftdwxak3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1db0c14308c42fd03886fdef546388f61558e612fce7f7043c28c822ac0c9b5e
Formbook
4083d4907b0926bbea1b80c0dd047d1e6c835dc259f9e698c4cfb7f2218b77d3
Formbook
780e7dce2d7bd0d03577dcfaf9f2c52a6cb755e1efb3213516c3159a2a324f3a
Formbook
89a5384b284e44d23891f6b22590f0194c4ac0b2b6507bb51fa678ede6d6069a
Formbook
acf40f9d3eea74324291c55f5ab8d3678e0dcc085581bdd9cf66897f4324bc3c
Formbook
ae7d4af56f79abdb03b343dfae7f614e52b4b3e842e1d11cc0c2e0953e74679d
Formbook
b7a756c577e078ad9d76c1e7aadb4d0370b1b5ee868f07fad21f33194febe1ec
Formbook
bae9500c6eecd23164e1eba0e489d68938bfff866d47fb9e6c8320b3b8500720
Formbook
ece61a7e1773aa3be279569c92cbc8c326005d86965cc60ce37a283efe262b0e
Formbook
+ 14'618 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:e0ep loader rat
Link:
https://tria.ge/reports/220328-wxk6ysdbd2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
4ce3b94228900267a7b8b15d58dd97a397e6c5a040a8ba2e8efacc2d796bdba9
MD5 hash:
f31e3460a181cdea39d8a4ff9bc0bfef
SHA1 hash:
b7b5175d7967390160481f64131139ea06bd6bdf
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3150e61d-afdb-4888-a7d0-3bfd0d328454/
Parent samples :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 hash:
cadb087ef3bc8c3b717ca4597d24e2c53855417e4dad8545f0a9c113f0558bfd
MD5 hash:
6a7fb28b08e4126ccb7c3f8ca187ee24
SHA1 hash:
e1fe2984c958450fc53108b191aec29e488216c1
Link:
https://www.unpac.me/results/3150e61d-afdb-4888-a7d0-3bfd0d328454/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/3150e61d-afdb-4888-a7d0-3bfd0d328454/
SH256 hash:
3987ea55911d57e4f6e97332a95794f8d38465b521f5b27e0372a4598ed702b6
MD5 hash:
a0c6b4cb7ba3c1cec049382ea25a1617
SHA1 hash:
cd2bb3994df63ee4c7cc478c5d9ca04cb01a2d85
Link:
https://www.unpac.me/results/3150e61d-afdb-4888-a7d0-3bfd0d328454/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3987ea55911d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/3987ea55911d57e4f6e97332a95794f8d38465b521f5b27e0372a4598ed702b6

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 3987ea55911d57e4f6e97332a95794f8d38465b521f5b27e0372a4598ed702b6

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/258738/

Comments