MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91d99c65d090258a349298db78014461d0461e916733b3be3247410e05c31d0d. 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: 17


Intelligence 17 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91d99c65d090258a349298db78014461d0461e916733b3be3247410e05c31d0d
SHA3-384 hash: 33379a0060c88bf22430b5d790e6c0b8f7eb6c730cc803dfa0860a2bbf9258cdc6b804082c92e8d45559c0230811d89a
SHA1 hash: 0cc889b4e109b4abc5bc3b64d29a697c86617453
MD5 hash: b42263eca95fb59f09c0f21b878935e5
humanhash: hot-river-equal-vermont
File name:vbc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:249'102 bytes
First seen:2022-04-07 10:02:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:HNeZmjDf1BJC8eDMrqtGT+hMqJ/YHgUj+rm:HNljpaDXtjjJ/Gj+rm
Threatray 14'832 similar samples on MalwareBazaar
TLSH T1A134124667E4C073EA928331087B97277B6D782920E5461F6B641B89FC3A7C2ED09F53
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter madjack_red
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
PO#CAPF304.xlsx
Verdict:
Malicious activity
Analysis date:
2022-04-07 10:01:18 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader formbook trojan stealer
Link:
https://app.any.run/tasks/af6273a4-23ba-4561-8a8e-3e0e5b6f667b

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/261686/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.27138.6192.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/12986/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/624eb6d8bbd90911a28e467e/reports/79e9db66-9561-4405-9f3e-8bc7718aa66b/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2ae78940-71f8-45d6-b46e-892a325ee465
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/972268
Signature
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 604750 Sample: vbc.exe Startdate: 07/04/2022 Architecture: WINDOWS Score: 100 32 www.lacimaeventos.com 2->32 34 lacimaeventos.com 2->34 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 3 other signatures 2->56 11 vbc.exe 18 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\elpfwzm.exe, PE32 11->30 dropped 14 elpfwzm.exe 11->14         started        process6 signatures7 66 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->66 68 Tries to detect virtualization through RDTSC time measurements 14->68 70 Injects a PE file into a foreign processes 14->70 17 elpfwzm.exe 14->17         started        process8 signatures9 42 Modifies the context of a thread in another process (thread injection) 17->42 44 Maps a DLL or memory area into another process 17->44 46 Sample uses process hollowing technique 17->46 48 Queues an APC in another process (thread injection) 17->48 20 explorer.exe 17->20         started        23 explorer.exe 17->23 injected process10 dnsIp11 58 Modifies the context of a thread in another process (thread injection) 20->58 60 Maps a DLL or memory area into another process 20->60 62 Tries to detect virtualization through RDTSC time measurements 20->62 26 cmd.exe 1 20->26         started        36 www.degengains.com 23.227.38.65, 49704, 80 CLOUDFLARENETUS Canada 23->36 38 shops.myshopify.com 23.227.38.74, 49702, 80 CLOUDFLARENETUS Canada 23->38 40 5 other IPs or domains 23->40 64 System process connects to network (likely due to code injection or exploit) 23->64 signatures12 process13 process14 28 conhost.exe 26->28         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91d99c65d090258a349298db78014461d0461e916733b3be3247410e05c31d0d/
Threat name:
Win32.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2022-04-07 10:03:07 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shmzyzoqsasyunestdnxqakemhiemhurm4z3hprsi5aq4boddugq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2385821f2732aafbdf3ddde31c314ddfaad694ad9261e4b40961b61a1a78cf64
Formbook
31fcd3d5d4db88d5742905ad8c2717d6c107b246ff4423745c3bbaf8f66e1a7a
Formbook
5cef577cfd13f14d2c7468515dcd2da6bdbcbfe9e6778bf2dbf4ee212f273372
Formbook
bdfe2908b1cc8e3956a0bfa91570cda9ee128dd9baa74d019f2a8f969e92a9a3
Formbook
ca5e82085e4621747c2ffd1de555b0cdc47cac5934575ed3de39c3b7095e0421
Formbook
d6b928a4292c14dee552691c4955bdff07d038470ec1419c88a4018fb06bd399
Formbook
df1510f64189b49ffeb4630c74af81a86888114102b493f52b5ad1c1cb58d121
Formbook
faff2bfbf22cd4f7d3d79ae04fbff8db10e9e0c5416dd27644f5bcb0d5dfd98c
Formbook
fc0298b6968720affc88ee57d037699606f5bdeb5d6d47db892c4fec474c062d
Formbook
+ 14'822 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ud5f loader rat
Link:
https://tria.ge/reports/220407-l3cfwsefa7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Uses the VBS compiler for execution
Executes dropped EXE
Xloader Payload
Xloader
Unpacked files
SH256 hash:
cf67ed89b1ad5002a948232de75f9cc28bc8dab6eb609a93ef254557ca4a5a48
MD5 hash:
20d4c91137cd70ee101d7c25274cceff
SHA1 hash:
37f85eee3785fc323de9546f3f1034c80fc24ef0
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f8e5ecb9-7833-44ca-854b-80139971d9d6/
Parent samples :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 hash:
166f0c6dfcd6ff3e15b314b43f481cf1c4ed04272d9f7a686d3648ba41d83123
MD5 hash:
ce44ac5c5cbfd3c7b8a1f801e25d880f
SHA1 hash:
5e74e7db50061889bd813b894352852bdbf31252
Link:
https://www.unpac.me/results/f8e5ecb9-7833-44ca-854b-80139971d9d6/
SH256 hash:
91d99c65d090258a349298db78014461d0461e916733b3be3247410e05c31d0d
MD5 hash:
b42263eca95fb59f09c0f21b878935e5
SHA1 hash:
0cc889b4e109b4abc5bc3b64d29a697c86617453
Link:
https://www.unpac.me/results/f8e5ecb9-7833-44ca-854b-80139971d9d6/
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/91d99c65d090258a349298db78014461d0461e916733b3be3247410e05c31d0d

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/261686/

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