MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23b82d55e4e538292a0f0b0b3e05fb2dd6405b9f001110cb212f20f838f191ff. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23b82d55e4e538292a0f0b0b3e05fb2dd6405b9f001110cb212f20f838f191ff
SHA3-384 hash: d893c16aa77b98602d7f9289a3a6c3e7a694e4186257339e9ee986fda707cd46ccf6a91129f11d0afde2c10fad26c099
SHA1 hash: 09992612d6a2a371f200dbd3b1a4cf5f88399c85
MD5 hash: f22663b8d2540f4380a52dbd95c9ed7b
humanhash: whiskey-six-neptune-kilo
File name:Payment Advice_Pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:920'576 bytes
First seen:2021-02-04 14:24:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:fa8oVN3HLDlp3gnBWEGBypwsLjN7V82/mmU54cCKxQ/Cdam6TDecyq05L:ALDknBWEGByp5jN7Scmm7cx2HXPn05L
Threatray 3'744 similar samples on MalwareBazaar
TLSH 371527E02240EA57E079C734C82455F043F2ED09EB15DA3F7DA73D897972B7287626A2
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment Advice_Pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-02-04 14:30:34 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/a08313aa-0c4c-4828-93db-1de9b6a7ddd0

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/115646/
Detection(s):
SecuriteInfo.com.Trojan.GenericKDZ.72836.32610.7802.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
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/599437
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
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: 348760 Sample: Payment Advice_Pdf.exe Startdate: 04/02/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 8 other signatures 2->44 10 Payment Advice_Pdf.exe 3 2->10         started        process3 file4 30 C:\Users\user\...\Payment Advice_Pdf.exe.log, ASCII 10->30 dropped 54 Injects a PE file into a foreign processes 10->54 14 Payment Advice_Pdf.exe 10->14         started        17 Payment Advice_Pdf.exe 10->17         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.yuelvzuche.com 156.238.196.234, 49767, 80 XHOSTSERVERUS Seychelles 19->32 34 nyeconcreations.com 199.34.228.170, 49771, 80 WEEBLYUS United States 19->34 36 6 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 chkdsk.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/23b82d55e4e538292a0f0b0b3e05fb2dd6405b9f001110cb212f20f838f191ff/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-03 23:27:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eo4c2vpe4u4cskqpbmft4bp3fxleaw47aairbszbf4qpqohrsh7q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
420f06103fac607a08bc7ff557201ffc5fc4f693aa52df9476171ed5398d8bf5
Formbook
628367b1e0868b53f1b97ce577a9eeeb1da2ec1e13b60cd9a4a01fad15d5fcef
Formbook
7e74cfc4a2605df540dbfb41d98d31a5ed80f24011687006c6818c72a0dab0d5
Formbook
82bce2eb0b0f2675b0ac41f33e8018bad765caeb084cfe7a6035fc4d9ea8f7ec
Formbook
98be979a6ee314a1829acd3d33744d9caf8fe2c871d6b73d3771c76c09584387
Formbook
c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54
Formbook
cf63918e0cb789a778c7eac7c1b5d896db35caa3fa9fd179b95a4101f5856af7
Formbook
dc7d5ba2b99378adec017bb8911f3d2efd3cccf02bd0dc270e3c5ea2f875fc94
Formbook
eb84b9475f21007662b9bfced7b93b2f4afa3777839ec9205d192b6f60886b0e
Formbook
f53df4e1f9405d98a02cf34bedf2ee5df88437c130eb339eb6da9850f14ad443
Formbook
+ 3'734 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210204-gm7myeemke/
Behaviour
Suspicious behavior: EnumeratesProcesses
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.workonlinetimallen.com/dll/
Unpacked files
SH256 hash:
27169ffd7443797c58d4fa71f1d3fcf6ef963752c9f086ae33f1061a2a9ef09f
MD5 hash:
ac2e021db43af46a6f45f6f844e5171e
SHA1 hash:
82b1053795d5eda0e48e7a0555f1c89f86fe2ba1
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/cb70a582-e6cc-4ed7-a335-38ef18f2e9a3/
Parent samples :
7e74cfc4a2605df540dbfb41d98d31a5ed80f24011687006c6818c72a0dab0d5
82bce2eb0b0f2675b0ac41f33e8018bad765caeb084cfe7a6035fc4d9ea8f7ec
628367b1e0868b53f1b97ce577a9eeeb1da2ec1e13b60cd9a4a01fad15d5fcef
cf63918e0cb789a778c7eac7c1b5d896db35caa3fa9fd179b95a4101f5856af7
5ae079397458f932dc10cf8b9e9aef020131172e2a0d7dfb43050ff12eb89865
23b82d55e4e538292a0f0b0b3e05fb2dd6405b9f001110cb212f20f838f191ff
SH256 hash:
cf84bc114ce2864b7b5f71cf88c66837b8733c10831055360bef8145b78893d9
MD5 hash:
a4cdae6f779af986379e4b01f9647e9b
SHA1 hash:
57e255e25d47e54eafb8555471ca375ce974b608
Link:
https://www.unpac.me/results/cb70a582-e6cc-4ed7-a335-38ef18f2e9a3/
SH256 hash:
2b2bcf851c2b87033fd24c890c2a1de3642564f7cec7282982d96b8280baa849
MD5 hash:
befb0470c71d676cc891cba16088975d
SHA1 hash:
5b7143f97d1d656fd1cacf70949048c1951b639a
Link:
https://www.unpac.me/results/cb70a582-e6cc-4ed7-a335-38ef18f2e9a3/
SH256 hash:
23b82d55e4e538292a0f0b0b3e05fb2dd6405b9f001110cb212f20f838f191ff
MD5 hash:
f22663b8d2540f4380a52dbd95c9ed7b
SHA1 hash:
09992612d6a2a371f200dbd3b1a4cf5f88399c85
Link:
https://www.unpac.me/results/cb70a582-e6cc-4ed7-a335-38ef18f2e9a3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/23b82d55e4e538292a0f0b0b3e05fb2dd6405b9f001110cb212f20f838f191ff

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_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/115646/

Comments