MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51d589a01ef70d7961a53244a56df4427176375e4001481ecae0c88848fc0fed. 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: 51d589a01ef70d7961a53244a56df4427176375e4001481ecae0c88848fc0fed
SHA3-384 hash: d76b7018bf6ae5ff4bd89d2a8b2e7ebf62172558019f102a148604355309e62661b2bd099020bc00c390748f7cd735fe
SHA1 hash: a12abfa3e7c3c436a5fd26bbef0659b9fcc2b91f
MD5 hash: c03837e9203f4f27c43f83a81c2c998c
humanhash: december-social-lima-eighteen
File name:SK034252562672.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:482'304 bytes
First seen:2022-05-16 10:54:15 UTC
Last seen:2022-05-16 12:12:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:578LLCgzaucw9VqUQCdYVfXHmyhEQ4Zmdt:5QLLCgtcbUQCdivmyhEUd
Threatray 8'029 similar samples on MalwareBazaar
TLSH T1C7A4F10B2BCA9665C1AD1674DBB8516442F0A38B12B5F7AF5C0162E89F51BCB6B021F3
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SK034252562672.exe
Verdict:
Malicious activity
Analysis date:
2022-05-17 00:43:02 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/299d9582-5c71-4155-a34c-96a780ee3731

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/271032/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Running batch commands
Сreating synchronization primitives
Launching a process
Creating a file
Creating a file in the %temp% directory
Creating a process from a recently created file
Moving of the original file
Unauthorized injection to a recently created process
Enabling autorun
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/62822d6722b733139c2054a7/reports/a69b68e6-084a-4249-8488-765acc5609fa/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/307869dc-d0d1-44b7-9a58-2660350df7d3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/994816
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Creates an undocumented autostart registry key
Drops PE files to the startup folder
Exploit detected, runtime environment dropped PE file
Exploit detected, runtime environment starts unknown processes
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Moves itself to temp directory
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 627312 Sample: SK034252562672.exe Startdate: 16/05/2022 Architecture: WINDOWS Score: 100 51 www.tajniezdrzi.quest 37.123.118.150, 49837, 80 UK2NET-ASGB United Kingdom 2->51 53 www.gulfund.com 91.195.240.94, 49834, 80 SEDO-ASDE Germany 2->53 55 8 other IPs or domains 2->55 59 Snort IDS alert for network traffic 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for URL or domain 2->63 65 9 other signatures 2->65 10 SK034252562672.exe 4 2->10         started        signatures3 process4 file5 47 C:\Users\user\...\SK034252562672.exe.log, ASCII 10->47 dropped 79 Moves itself to temp directory 10->79 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->81 14 java.exe 5 10->14         started        18 cmd.exe 1 10->18         started        signatures6 process7 file8 49 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 14->49 dropped 83 Exploit detected, runtime environment starts unknown processes 14->83 85 Exploit detected, runtime environment dropped PE file 14->85 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->87 20 cmd.exe 3 14->20         started        89 Uses ping.exe to sleep 18->89 91 Drops PE files to the startup folder 18->91 93 Uses ping.exe to check the status of other devices and networks 18->93 24 reg.exe 1 1 18->24         started        26 PING.EXE 1 18->26         started        29 conhost.exe 18->29         started        signatures9 process10 dnsIp11 43 C:\Users\user\AppData\Roaming\...\java.exe, PE32 20->43 dropped 45 C:\Users\user\...\java.exe:Zone.Identifier, ASCII 20->45 dropped 67 Uses ping.exe to sleep 20->67 31 java.exe 2 20->31         started        34 conhost.exe 20->34         started        36 PING.EXE 1 20->36         started        38 PING.EXE 1 20->38         started        69 Creates an undocumented autostart registry key 24->69 57 127.0.0.1 unknown unknown 26->57 file12 signatures13 process14 signatures15 95 Writes to foreign memory regions 31->95 97 Hides that the sample has been downloaded from the Internet (zone.identifier) 31->97 99 Injects a PE file into a foreign processes 31->99 40 AddInProcess32.exe 31->40         started        process16 signatures17 71 Modifies the context of a thread in another process (thread injection) 40->71 73 Maps a DLL or memory area into another process 40->73 75 Tries to detect virtualization through RDTSC time measurements 40->75 77 Queues an APC in another process (thread injection) 40->77
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/51d589a01ef70d7961a53244a56df4427176375e4001481ecae0c88848fc0fed/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-16 06:18:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=khkytia664gxsynfgjckk3puijyxmn26iaauqhwk4deiqsh4b7wq._file
Verdict:
malicious
Similar samples:
046677f440c058c3a9c0e3d3ed46f220337249717c62c213c35ad62fed8efb48
Formbook
0b7b92e40a75e7c96676e65733f2babfdf0c37529c130619510b2b0b7879a697
Formbook
0dcc54b7413d2c838980c6ccdb5d68c52a0a1b7994d212c537291460a5c49aa0
Formbook
207b5ac6c78b23922be438ba29bce1a4fd73bb5748906c594f13eaa8b597c284
Formbook
5bbb1d94191a073a18a77febe1aa777a77966bd506fae11b30e8fe45c0068ac2
Formbook
607f815f47b19adef7c23368321a00aae4bb83b360bff766260bf26e0e947627
Formbook
772b0096bf5c9bb9c71a7ea2ba9a631a80b115134f1d480c08af549fb6f90d87
Formbook
90b7cceec2847da6f3d058a594cde1c8a5b723a133b45746f0ee240ef37dd67e
Formbook
ae0a700e0196cfa2fb776f1aebe39f33dddec432a45f2a55640fd79082cb4106
Formbook
dd221c0b7c00579705ae33a75edd3e7563f436da1aff4d6f3f019a0dfdccde2b
Formbook
+ 8'019 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:euv4 loader persistence rat
Link:
https://tria.ge/reports/220516-mz4lmsggf3/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Drops startup file
Executes dropped EXE
Xloader Payload
Modifies WinLogon for persistence
Xloader
Unpacked files
SH256 hash:
b1a4f59d5b1ddef29779839d7d02297fd1d2869514f72b028db5e5953bd925f5
MD5 hash:
dbf292a6fd340f123284f85164389376
SHA1 hash:
8e5afcd8fa842208e72c224f97f549860cca499d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/1166921a-83dc-4936-803a-f105aeebf1f0/
Parent samples :
b1fe85520c015f8f7344de2923392bfbf216bfa02f9db21c8aa4bb20e7e9f192
51d589a01ef70d7961a53244a56df4427176375e4001481ecae0c88848fc0fed
26255a564473b658bd77619f08223a2a22c42eee8ec43c41b0fbe2335f20ef27
db130f1177379a6c6fc9a87eba59870115f8888d6737f76aba9ea77346d0006c
aa4dc5baf652fff47985d21f8936ff56200d66ff037b12288dd907fa7b1a78ec
SH256 hash:
c611a6ceb263401ed18ff93961bd6d0cdf8757e48d8e76b13943e85b9d3b5a0b
MD5 hash:
f9b293305bd04eee511c0ffd0e7f29d7
SHA1 hash:
fd981a9537a903422311f582defc1c8fd97248af
Link:
https://www.unpac.me/results/1166921a-83dc-4936-803a-f105aeebf1f0/
SH256 hash:
7d170109f352f251d7ac012882e005b059b0db5ecce7520acf7be2ba8f13792a
MD5 hash:
72403055ee098f50bcc8a238fdbef878
SHA1 hash:
eb5ed9b38f5a23bb00b221acf3f7233aa2e9299d
Link:
https://www.unpac.me/results/1166921a-83dc-4936-803a-f105aeebf1f0/
SH256 hash:
de946071f5ce37d7bd121d1d7123a795c6111bb37715139a956110b97b0ba98a
MD5 hash:
ee5770ede963b3444343d074820acf46
SHA1 hash:
8863ca4d0e2f49f93c5325135931a163d652ab73
Link:
https://www.unpac.me/results/1166921a-83dc-4936-803a-f105aeebf1f0/
SH256 hash:
51d589a01ef70d7961a53244a56df4427176375e4001481ecae0c88848fc0fed
MD5 hash:
c03837e9203f4f27c43f83a81c2c998c
SHA1 hash:
a12abfa3e7c3c436a5fd26bbef0659b9fcc2b91f
Link:
https://www.unpac.me/results/1166921a-83dc-4936-803a-f105aeebf1f0/
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/51d589a01ef70d7961a53244a56df4427176375e4001481ecae0c88848fc0fed

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
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 51d589a01ef70d7961a53244a56df4427176375e4001481ecae0c88848fc0fed

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/271032/

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