MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5c26f9486bb9cf170e24b8b022e4a8d8eca8632b158ce0b2751b3f34c81b4221. 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: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5c26f9486bb9cf170e24b8b022e4a8d8eca8632b158ce0b2751b3f34c81b4221
SHA3-384 hash: da8d9a77eb17204fff3a0c51a340cbbc8c9e1735f571714c1dc0bf6a755c2a7dbcd1ae7e3a8c851c145e8f339b543e06
SHA1 hash: 82c68f215937ee4a8cf605e698b88897b98a8b31
MD5 hash: 9a91670d7b36a98bd317682b9099d18a
humanhash: september-mountain-sink-stream
File name:win32.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:921'088 bytes
First seen:2021-01-26 13:32:10 UTC
Last seen:2021-01-26 16:20:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:vDwaAaFUmwH77vvgdLZnHV5j+N11thWgF8Rnq/owoymVVMrSPJABREb:vcgObjveZnHVUN1rtCxq/RBcWkJSRE
Threatray 4'099 similar samples on MalwareBazaar
TLSH 9415B02427A08E04C2BD5B3685A4D23557F46C258E16EB5CEDC96CD73F33A61EB1B20A
Reporter JAMESWT_WT
Tags:FormBook VelvetSweatshop

Intelligence

File Origin
# of uploads :
3
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
00775a5afec866888aa81e6070e9578a899a6215c8adbdb32d843b93707d42b2.xlsx
Verdict:
Malicious activity
Analysis date:
2021-01-26 13:30:49 UTC
Tags:
encrypted trojan exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/8a61e685-d939-41eb-95da-2f8bcac8ff30

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/113900/
Detection(s):
SecuriteInfo.com.Variant.Bulz.313237.10735.14091.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/590710
Signature
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
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 344394 Sample: win32.exe Startdate: 26/01/2021 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 4 other signatures 2->45 10 win32.exe 3 2->10         started        process3 file4 29 C:\Users\user\AppData\Local\...\win32.exe.log, ASCII 10->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 10->55 57 Injects a PE file into a foreign processes 10->57 14 win32.exe 10->14         started        signatures5 process6 signatures7 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 Queues an APC in another process (thread injection) 14->65 17 explorer.exe 14->17 injected process8 dnsIp9 31 www.abipisan.com 199.34.228.68, 49762, 49784, 80 WEEBLYUS United States 17->31 33 www.c2ornot.com 156.252.101.208, 49755, 49783, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 17->33 35 20 other IPs or domains 17->35 47 System process connects to network (likely due to code injection or exploit) 17->47 21 raserver.exe 12 17->21         started        signatures10 process11 dnsIp12 37 www.180wea.com 21->37 49 Modifies the context of a thread in another process (thread injection) 21->49 51 Maps a DLL or memory area into another process 21->51 53 Tries to detect virtualization through RDTSC time measurements 21->53 25 cmd.exe 1 21->25         started        signatures13 process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5c26f9486bb9cf170e24b8b022e4a8d8eca8632b158ce0b2751b3f34c81b4221/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-26 13:33:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
17560799b5c280bc9c03210bc5173826c9de6ea7d488f5ead4441933872ea690
Formbook
220ab940326b10e217ed23f4806edd06fac3cf52cbd3c8863863eac6893b02ea
Formbook
2d876129c69f0f4be0c87aeb20cdc38ae8f5db29bea6f87807946b89e0b61a50
Formbook
391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7
Formbook
45edd72b7b04c327b5c5278a3074d6e0bccbdf2ece95c524f1e5342bd6910dcf
Formbook
5551c39b0838a38711babfe60b36dda8855791ce1512553858fbaff025d31122
Formbook
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087
Formbook
c4527be43e6ad0e3eb7e8ca1bf26c120c0c5eef996716178a87bbe2b807efa57
Formbook
f991818096935708b00e812a9700a0215a1583047f2721552a9d6375abf0db75
Formbook
fdc7a121571ec5e47773d3c837cd0d4e7234d00b6a7262b2500301c51ee5801a
Formbook
+ 4'089 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210126-ptpblrt78e/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.kaiyuansu.pro/incn/
Unpacked files
SH256 hash:
b465c8881542a4611151f7789e24cf4fc1b840f048a5607f9854844b09b5aa34
MD5 hash:
c62062fce465193f9d4f5e24e50222c6
SHA1 hash:
2dbdf9ffff58871bd18a6e4b9ae49025b7a15163
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4e6c0f9c-2d67-4a55-b26f-b086d01405dc/
Parent samples :
6961aeab02e7dafda1e2f16e9ec88fd5dce6199925a71f22657a2c48627ae087
f991818096935708b00e812a9700a0215a1583047f2721552a9d6375abf0db75
391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7
5c26f9486bb9cf170e24b8b022e4a8d8eca8632b158ce0b2751b3f34c81b4221
SH256 hash:
3e4848831ebcf94227f26f425cb7e0bfdcaea6ba1ddb685acef98276c055cc28
MD5 hash:
d38a77f4c5c41889091dc18b4380a6ec
SHA1 hash:
f529930363e2c42be411c31dd191ab2d63331e67
Link:
https://www.unpac.me/results/4e6c0f9c-2d67-4a55-b26f-b086d01405dc/
SH256 hash:
ac4512c817c309261d8198967719f4e284f6b701a81c0ccc58d64c81aeb9048a
MD5 hash:
f7b258e18e4a156535d10710b26d0f4e
SHA1 hash:
402934203483bb6e2afa1705905c470a374bb44a
Link:
https://www.unpac.me/results/4e6c0f9c-2d67-4a55-b26f-b086d01405dc/
SH256 hash:
5c26f9486bb9cf170e24b8b022e4a8d8eca8632b158ce0b2751b3f34c81b4221
MD5 hash:
9a91670d7b36a98bd317682b9099d18a
SHA1 hash:
82c68f215937ee4a8cf605e698b88897b98a8b31
Link:
https://www.unpac.me/results/4e6c0f9c-2d67-4a55-b26f-b086d01405dc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5c26f9486bb9cf170e24b8b022e4a8d8eca8632b158ce0b2751b3f34c81b4221

File information

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

Web download

Formbook

Executable exe 5c26f9486bb9cf170e24b8b022e4a8d8eca8632b158ce0b2751b3f34c81b4221

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/978927/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/113900/

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