MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e65ddcb1e8d85b5d13ab1aaf5d9747feea1e3e442ed82773640d740627f4d7ca. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e65ddcb1e8d85b5d13ab1aaf5d9747feea1e3e442ed82773640d740627f4d7ca
SHA3-384 hash: 14a348a50059d98440cf120c867886d904b9c4019f55a81c87226f647da3af532123be73c809f1f6d645056bc4af7608
SHA1 hash: 515684d60c79dc3f23b6246413684910b12135e7
MD5 hash: e4f3b7781f5a839be837cfee99761bc5
humanhash: timing-low-connecticut-stream
File name:e4f3b7781f5a839be837cfee99761bc5.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:775'168 bytes
First seen:2021-06-21 18:06:04 UTC
Last seen:2021-06-21 18:46:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Sj0p+WFHmskrRLRmJflZB3hpVB3JU8ZgGhbbCPQazd5tHOjsSRIsq3WYTl:48dHSVmRrB3NBZvZgkCPQatJSR/oWYT
Threatray 5'858 similar samples on MalwareBazaar
TLSH 5AF4D0303AD9A615F27BEF7955E071819BFBB623A713D5593D6002C50623F80DEE213A
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
db12524b47193775807b6650b9516504d23716618b7f406cd2b98b213d79c6ce
Verdict:
Malicious activity
Analysis date:
2021-06-21 17:48:16 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/7fae1593-2e7b-4b1c-ac1a-caf277538d54

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/167358/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.29190.28003.UNOFFICIAL
Create hunting rule

Result
Verdict:
UNKNOWN
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/f6e7f1e3-b975-4637-ac1e-de766d9a55f4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/805509
Signature
C2 URLs / IPs found in malware configuration
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)
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 437928 Sample: Fegvc0Wetr.exe Startdate: 21/06/2021 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->32 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 7 other signatures 2->38 8 Fegvc0Wetr.exe 3 2->8         started        12 explorer.exe 2->12         started        process3 dnsIp4 24 C:\Users\user\AppData\...\Fegvc0Wetr.exe.log, ASCII 8->24 dropped 40 Tries to detect virtualization through RDTSC time measurements 8->40 42 Injects a PE file into a foreign processes 8->42 15 Fegvc0Wetr.exe 8->15         started        26 www.gcbsclubc.com 103.120.82.56, 49769, 80 WEST263GO-HKWest263InternationalLimitedHK Hong Kong 12->26 28 www.cai23668.com 209.99.40.222, 49770, 80 CONFLUENCE-NETWORK-INCVG United States 12->28 30 2 other IPs or domains 12->30 44 System process connects to network (likely due to code injection or exploit) 12->44 18 explorer.exe 12->18         started        file5 signatures6 process7 signatures8 46 Modifies the context of a thread in another process (thread injection) 15->46 48 Maps a DLL or memory area into another process 15->48 50 Sample uses process hollowing technique 15->50 52 Queues an APC in another process (thread injection) 15->52 54 Tries to detect virtualization through RDTSC time measurements 18->54 20 cmd.exe 1 18->20         started        process9 process10 22 conhost.exe 20->22         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e65ddcb1e8d85b5d13ab1aaf5d9747feea1e3e442ed82773640d740627f4d7ca/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-21 18:06:12 UTC
AV detection:
13 of 29 (44.83%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
049f2bcbaa6d18cf9ee22b12c47ba8578c938d04df6d35a3c4cd3ed81fdcf4ab
Formbook
17dddb2e6db0aa7d67c0e63f1129dde91f471fb6c5ce41d1e1574d8403ecd1ad
Formbook
1bb79d3f58130c38c2d1c54737aaa69bfdf5693cf6177efaac78377020b86ad6
Formbook
1df6109d033a42d97b34133e69afc0da679586b85b6614b034ebfd9343062d20
Formbook
38acc90cd6d33b61b99cca8cf06781e1bd2ab8ffebc3a33e036eca36037d413b
Formbook
5313ca84959a3d88973ad5b85acc66e268c3e8874d5d6f21fcd4a4c1a7628496
Formbook
5d617282230f991221360f213e15b0e62d0c462afc3d32299c9b410658fbb106
Formbook
c2336a135878814b7b9b82146879a4ee8910e0a7e540415cb3716e1f62c1ea41
Formbook
d0b2bc00645de803a4e9df303539995ee8f781631684b04fe67ee7e01bcf9c21
Formbook
f10508b4bd982e597771e6128fede0b532c42cb799ac495c922940c27a942dbe
Formbook
+ 5'848 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/210621-vqxanaps3x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.yellow-wink.com/nff/
Unpacked files
SH256 hash:
cefb4fa9d8f118ece98e8e9da00644e3d086058903f64721335b513af69b0892
MD5 hash:
7413d26f5700cfee7acdf5c6f5c5d89c
SHA1 hash:
05906b80d83de78d0bee721893f69be0ceb608a9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3f7de8e9-1735-4bd4-a325-e4626a489718/
Parent samples :
e65ddcb1e8d85b5d13ab1aaf5d9747feea1e3e442ed82773640d740627f4d7ca
55d713c0259fec5f0e64aa9f01d63ee1db90b60960e3b61b11e36bf1cd0fd2f1
5e8297dde5b002b5304bf70d6e33db9bbd40cda37f0e02edaddd732657f6ac32
a03ebb1ad2450b07206923043ad865cb83e1d4798a9273704a9626854fd17399
a53a4c82477eada893191662cf4ab4b3f44d1da7cae9ea8a7de3f859a424292b
e2c11a82ce76ab32b7033c6d47081c6c44fe2288211fe0af6202f3333196cbe6
SH256 hash:
a3258710ea04710ffb5d59afc62d5bdb900e48ff479dfbe692234b3a3a73c396
MD5 hash:
3f637971dadfe4f272dbf9eb6e6136b6
SHA1 hash:
4173c3ae5d9be2f8e5658e62b8553d94e674bf57
Link:
https://www.unpac.me/results/3f7de8e9-1735-4bd4-a325-e4626a489718/
SH256 hash:
143fb9b2dfa4fcee4242799d146f6ba3370aae0305ad8a2b7bc1e908a5664d89
MD5 hash:
a3f6aff1986fd9a328dcee355b815a93
SHA1 hash:
294c005b25e01700d1746eafee43114af5cd46f0
Link:
https://www.unpac.me/results/3f7de8e9-1735-4bd4-a325-e4626a489718/
SH256 hash:
e65ddcb1e8d85b5d13ab1aaf5d9747feea1e3e442ed82773640d740627f4d7ca
MD5 hash:
e4f3b7781f5a839be837cfee99761bc5
SHA1 hash:
515684d60c79dc3f23b6246413684910b12135e7
Link:
https://www.unpac.me/results/3f7de8e9-1735-4bd4-a325-e4626a489718/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/e65ddcb1e8d85b5d13ab1aaf5d9747feea1e3e442ed82773640d740627f4d7ca

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.

Web download

Formbook

Executable exe e65ddcb1e8d85b5d13ab1aaf5d9747feea1e3e442ed82773640d740627f4d7ca

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1384460/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/167358/

Comments