MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc5e89be545c0dd429fc13ffad624ee755e7fa0b75795de2bb3759aa91f93a8c. 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 1
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SHA256 hash: bc5e89be545c0dd429fc13ffad624ee755e7fa0b75795de2bb3759aa91f93a8c
SHA3-384 hash: d5f9f2455a4aa9b27296e5ac632a79960bcdc7d61ba7820d02ecc59c841abb5e32011935b02421b10428bf56239a6925
SHA1 hash: 7dbac639ebdbd3a4a0b123cc4c13b46625343aab
MD5 hash: b88bc0d2d698e0104d56ee37ab60da42
humanhash: alpha-hotel-virginia-october
File name:b88bc0d2d698e0104d56ee37ab60da42
Download: download sample
Signature Formbook
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File size:728'064 bytes
First seen:2022-07-08 15:12:03 UTC
Last seen:2022-07-14 04:19:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'793 x AgentTesla, 19'692 x Formbook, 12'274 x SnakeKeylogger)
ssdeep 12288:imKEfVqWjsZ5uEd2iNnG1ZsRUhUsuDWxLYS8Ac8zm0swqgObl6806Dlt:FKoV/W5X1wsRU8W5YS8AcMm0shlbl68
TLSH T120F40215FFA6CE61D46E263AC8D2092103726606A912DF6BBEC7335EA1173F34847B47
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
306
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62c84987783441cda1174b46/reports/7c7ce5b2-23fb-4696-9660-745d5aedb02f/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/23b5b0cd-ad79-4c77-b53e-9d8ef2c39f26
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1027372
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 659863 Sample: AaS2u1lB6A Startdate: 08/07/2022 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Yara detected AntiVM3 2->50 52 Yara detected FormBook 2->52 54 6 other signatures 2->54 10 AaS2u1lB6A.exe 7 2->10         started        process3 file4 36 C:\Users\user\AppData\...\JSwWjlXYANwLd.exe, PE32 10->36 dropped 38 C:\...\JSwWjlXYANwLd.exe:Zone.Identifier, ASCII 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp7386.tmp, XML 10->40 dropped 42 C:\Users\user\AppData\...\AaS2u1lB6A.exe.log, ASCII 10->42 dropped 58 Uses schtasks.exe or at.exe to add and modify task schedules 10->58 60 Adds a directory exclusion to Windows Defender 10->60 62 Tries to detect virtualization through RDTSC time measurements 10->62 64 Injects a PE file into a foreign processes 10->64 14 AaS2u1lB6A.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 72 Modifies the context of a thread in another process (thread injection) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Sample uses process hollowing technique 14->76 78 Queues an APC in another process (thread injection) 14->78 21 explorer.exe 14->21 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 dnsIp9 44 www.nopeys.cfd 21->44 46 parkingpage.namecheap.com 198.54.117.218, 49882, 80 NAMECHEAP-NETUS United States 21->46 56 System process connects to network (likely due to code injection or exploit) 21->56 29 mstsc.exe 21->29         started        signatures10 process11 signatures12 66 Modifies the context of a thread in another process (thread injection) 29->66 68 Maps a DLL or memory area into another process 29->68 70 Tries to detect virtualization through RDTSC time measurements 29->70 32 cmd.exe 1 29->32         started        process13 process14 34 conhost.exe 32->34         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/bc5e89be545c0dd429fc13ffad624ee755e7fa0b75795de2bb3759aa91f93a8c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-07-08 15:13:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xrpitpsulqg5ikp4cp722yso45k6p6qlov4v3yv3g5m2vepzhkga._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:bs48 rat spyware stealer trojan
Link:
https://tria.ge/reports/220708-sk8jyafcgn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
83e5e014c8083898762ae90f1b64a1f4582c9513c78e36e0dfe2e9060bdcc9a3
MD5 hash:
f645e996aeb17281c80cc77eb6f10089
SHA1 hash:
e1bb752a5e9cc928b3c1e62c693be8bbfba3b33a
Detections:
win_formbook_g0
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win_formbook_auto
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FormBook
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Link:
https://www.unpac.me/results/cfdc5bd2-7e16-4851-9171-f82980f2c99d/
Parent samples :
bc5e89be545c0dd429fc13ffad624ee755e7fa0b75795de2bb3759aa91f93a8c
85059049d7402759f88a0657622ade26d9a45ba2914c4c078a885921f322f940
SH256 hash:
8cc1e0113d6f513f1971bde0c6fa3dbf6468f83339af7e98c8fc072447268f98
MD5 hash:
6271904def27db13b6d2f47c10bd7cfe
SHA1 hash:
f03058df658ed6f923b2ddecad0072c67fd72086
Link:
https://www.unpac.me/results/cfdc5bd2-7e16-4851-9171-f82980f2c99d/
SH256 hash:
3b59fe180dd50e3f3d4fdcbdd4e7a2d4e3e1c85ae43cb4f3716c4be41e9ec2ae
MD5 hash:
9ea556e333e216a65aa09c102f36004f
SHA1 hash:
814c07f1dc68bd61840384aac3aa8346d9f8148f
Link:
https://www.unpac.me/results/cfdc5bd2-7e16-4851-9171-f82980f2c99d/
SH256 hash:
250742c017deb402e91a7f6a31c31f253f592331cede0bf1127e8ad5eeab002e
MD5 hash:
451f67479fc2cbdc185c0028c28afd36
SHA1 hash:
54676b424aa4ed57f5009f710675d028687defd4
Link:
https://www.unpac.me/results/cfdc5bd2-7e16-4851-9171-f82980f2c99d/
SH256 hash:
c94b3ef4db126d14bd5b62dbf4dd14341bb407f9ee8224c9a8fba25509cd09cf
MD5 hash:
2a740108eea4365187285fcf65f1f02c
SHA1 hash:
3465eac6b225efab368a03d976a2e51736333e1e
Link:
https://www.unpac.me/results/cfdc5bd2-7e16-4851-9171-f82980f2c99d/
SH256 hash:
bc5e89be545c0dd429fc13ffad624ee755e7fa0b75795de2bb3759aa91f93a8c
MD5 hash:
b88bc0d2d698e0104d56ee37ab60da42
SHA1 hash:
7dbac639ebdbd3a4a0b123cc4c13b46625343aab
Link:
https://www.unpac.me/results/cfdc5bd2-7e16-4851-9171-f82980f2c99d/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bc5e89be545c/report/overview.html
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/bc5e89be545c0dd429fc13ffad624ee755e7fa0b75795de2bb3759aa91f93a8c

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
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe bc5e89be545c0dd429fc13ffad624ee755e7fa0b75795de2bb3759aa91f93a8c

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2255402/

Comments


Avatar
zbet commented on 2022-07-08 15:12:10 UTC

url : hxxp://192.227.158.100/thu/thur.exe