MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c
SHA3-384 hash: ab7d45e08e2d124da1fbad38923a87afe5039799208ee85dae23cdf3c5ffffe45d819c26cd88d28b2bef6006e34a08fc
SHA1 hash: 0346b7e8e054c151735647d469f265028019bd2e
MD5 hash: b49ae4462f5ed9597f6f3646091c707a
humanhash: princess-nitrogen-undress-solar
File name:6HGB5SHl8XtnFWx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:496'640 bytes
First seen:2021-10-05 13:41:20 UTC
Last seen:2021-10-05 14:00:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:nKmCLXDlnhuQ+3HwOcc0WYHMTZPPPO1/E9aPEUEN75kpr4j6lrG1yXUKqLe:S3occ0W1TZPPPOlcU675WlrGwXc
Threatray 9'909 similar samples on MalwareBazaar
TLSH T149B4D09433AF6B05EE348FF4185C91C253FAAC3B117AD7690DD1B1EE2922B704B51A53
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6HGB5SHl8XtnFWx.exe
Verdict:
Malicious activity
Analysis date:
2021-10-05 14:34:37 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/3a6ea8d1-d950-4bd7-8ac0-b0ad1e64fedd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/195083/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.935-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615c562e98a6280f39325cf3/reports/da19e225-e8f9-4c8b-bfa6-458e11be7de8/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9853979b-316e-4905-82fb-b4017cfd5361
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/864829
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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: 497269 Sample: 6HGB5SHl8XtnFWx.exe Startdate: 05/10/2021 Architecture: WINDOWS Score: 100 37 www.keiretsu.xyz 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 9 other signatures 2->51 11 6HGB5SHl8XtnFWx.exe 3 2->11         started        signatures3 process4 file5 35 C:\Users\user\...\6HGB5SHl8XtnFWx.exe.log, ASCII 11->35 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Injects a PE file into a foreign processes 11->57 15 6HGB5SHl8XtnFWx.exe 11->15         started        18 6HGB5SHl8XtnFWx.exe 11->18         started        20 6HGB5SHl8XtnFWx.exe 11->20         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 22 explorer.exe 15->22 injected 26 svchost.exe 1 15->26         started        process9 dnsIp10 39 www.skandinaviskakryptobanken.com 194.9.94.85, 49807, 80 LOOPIASE Sweden 22->39 41 www.cronicasdebia.com 22->41 43 ghs.google.com 142.250.203.115, 49802, 80 GOOGLEUS United States 22->43 53 System process connects to network (likely due to code injection or exploit) 22->53 28 svchost.exe 22->28         started        signatures11 process12 signatures13 59 Self deletion via cmd delete 28->59 61 Modifies the context of a thread in another process (thread injection) 28->61 63 Maps a DLL or memory area into another process 28->63 65 Tries to detect virtualization through RDTSC time measurements 28->65 31 cmd.exe 1 28->31         started        process14 process15 33 conhost.exe 31->33         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-10-05 12:57:05 UTC
AV detection:
26 of 45 (57.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sdtpccqmvk6skcu5ipistavvqypmcyaxpwm22b6onc6rruidonwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
62ee412123d6e8832cebbf33d84d5695adc4fc2d66f0ec7222d9ccd5f21d4866
Formbook
638394ba0aa51689488ddd944d4b358f02fde988c65842110bdc089e04e9f138
Formbook
6bb763ffd1ca484344f2a02df3f9e6bddc18a0f1fcd5d58002ad16b82b36db90
Formbook
7249d67d49a862e577120d3125e33566c61241969b4f48d701de97a5fe0abc04
Formbook
7c7e7d1ad3f8afd0ffcba163bac7c1df9ceb8202a96a61b30b697569e00051b0
Formbook
90661f85c7864f95181eceebf32eafd0b4b166aebdfdf5529edfc3a3dd6c0715
Formbook
d16da4e6a63f26601dd3c961f31708db79be1aead7cf3834fafa47095b1a45a6
Formbook
d2d6a8c31acdd92eb9a005e2fac8838a382ab0425fc01bc88616bda185ab7b4c
Formbook
e14df53adff2889344d4502133a00a389e06039715c26a7724ed3f046fc683a1
Formbook
fa0d4eeae6c743ddc44d9664b0e6d44238beff477d1f4e9a560e68026a4264d9
Formbook
+ 9'899 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rv9n rat spyware stealer trojan
Link:
https://tria.ge/reports/211005-qzpn9shha8/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.cjspizza.net/rv9n/
Unpacked files
SH256 hash:
d19b14db5e245119639c9c16b210de99a6395526dadf9b5a420170795541b1aa
MD5 hash:
f71b2a15653352884c26645121375f7b
SHA1 hash:
7529a87a2c437459b3f5ee5ea46136447ae31645
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/d556bd42-f33b-443e-affb-df0f4f6ff7fa/
Parent samples :
90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c
2361714a402b085426e5712ff07a8ada008ae9bf76e8ee248cc7ca651c7ac752
SH256 hash:
0befae78383f411efcd263a56dc67e63ac9a15c496bb58b5574ac5c95f7e3305
MD5 hash:
d425b18b84e6e96897b88d50fea7811c
SHA1 hash:
a6e550774562065847e6737e2c64cb97b12e6ff1
Link:
https://www.unpac.me/results/d556bd42-f33b-443e-affb-df0f4f6ff7fa/
SH256 hash:
fe8637d821a39a8b74abce7e043007d38cb9c5cfcb7098af9846cfd98185ac03
MD5 hash:
c380b6831f456ac5cac08c78c0e4dada
SHA1 hash:
3e241a0b9d96c1dfbadd7ee1a8c5ee6d74eba11c
Link:
https://www.unpac.me/results/d556bd42-f33b-443e-affb-df0f4f6ff7fa/
SH256 hash:
90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c
MD5 hash:
b49ae4462f5ed9597f6f3646091c707a
SHA1 hash:
0346b7e8e054c151735647d469f265028019bd2e
Link:
https://www.unpac.me/results/d556bd42-f33b-443e-affb-df0f4f6ff7fa/
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/90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c

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.

Malspam

Formbook

Executable exe 90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/195083/

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