MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 878c2055975e65a5cb716bcad258e77ce3c1706f2824616a2ed2bbb2344fbec5. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 878c2055975e65a5cb716bcad258e77ce3c1706f2824616a2ed2bbb2344fbec5
SHA3-384 hash: 86cdb6fcba1c030c796e3debd356754e9608ac1e71109df2c1d190e3840241734a3243fdf8c8e591a21c0900105327de
SHA1 hash: ef93b2347909953af82d89642aa1962dabe50ada
MD5 hash: 9b4e4041c2731241c61f5c01a8680372
humanhash: lemon-artist-edward-william
File name:gunzipped
Download: download sample
Signature Formbook
Create hunting rule
File size:614'912 bytes
First seen:2023-11-26 16:51:33 UTC
Last seen:2023-11-26 18:37:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:3y8oG24hTXrdwcruEDV6KwQzcCMWMK5KMOMDhsnUgCDV8qqOox3kUdZwD:3Fsu3JRx6KwQUlKUMzDhcUDiq65kUdZS
TLSH T1C1D42362116813B7C8D77FB108BD5397E3B625536886D1A24ED8B2FDAE41F8D8F06072
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 15cce4f4d0d8cc53 (12 x Formbook, 5 x AgentTesla, 3 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook gunzipped

Intelligence

File Origin
# of uploads :
2
# of downloads :
295
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/460357/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.22942.10126.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Launching a process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/656377b86d4756846dc243f4/reports/6e6b5f42-77b8-49ef-a1db-d66b315ff161/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/878c2055975e65a5cb716bcad258e77ce3c1706f2824616a2ed2bbb2344fbec5
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/45f535c3-e7be-4fc9-ba75-1e3d4312ae8b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1348035
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1348035 Sample: gunzipped.exe Startdate: 26/11/2023 Architecture: WINDOWS Score: 100 32 www.iengineeringmalls.com 2->32 34 www.zz23xw.top 2->34 36 9 other IPs or domains 2->36 44 Multi AV Scanner detection for domain / URL 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 6 other signatures 2->50 10 gunzipped.exe 3 2->10         started        signatures3 process4 signatures5 60 Injects a PE file into a foreign processes 10->60 13 gunzipped.exe 10->13         started        16 gunzipped.exe 10->16         started        18 gunzipped.exe 10->18         started        20 gunzipped.exe 10->20         started        process6 signatures7 62 Maps a DLL or memory area into another process 13->62 22 GRiYABqhtkuhnjH.exe 13->22 injected process8 process9 24 iexpress.exe 13 22->24         started        signatures10 52 Tries to steal Mail credentials (via file / registry access) 24->52 54 Tries to harvest and steal browser information (history, passwords, etc) 24->54 56 Writes to foreign memory regions 24->56 58 3 other signatures 24->58 27 GRiYABqhtkuhnjH.exe 24->27 injected 30 firefox.exe 24->30         started        process11 dnsIp12 38 www.esperomuzik.org 154.213.65.193, 49755, 49756, 49757 VPSQUANUS Seychelles 27->38 40 www.zz23xw.top 198.44.187.121, 49767, 49768, 49769 VPSQUANUS United States 27->40 42 8 other IPs or domains 27->42
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/878c2055975e65a5cb716bcad258e77ce3c1706f2824616a2ed2bbb2344fbec5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/878c2055975e65a5cb716bcad258e77ce3c1706f2824616a2ed2bbb2344fbec5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-22 04:28:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q6gcavmxlzs2ls3rnpfnewhhptr4c4dpfasgc2ro2k53encpx3cq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231126-vdd3vsae73/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Unpacked files
SH256 hash:
4549efbcddb7a6ed25955f2ccd49f43ab707299e12fe60655b1809edeef6c573
MD5 hash:
40e53a6960031e8ffe002c3e15fb2c5c
SHA1 hash:
e74ecc57d72abbbe5486130bd6f4c1b4136efec3
Link:
https://www.unpac.me/results/7bea0c27-36e2-4e5f-83b7-673f310cf0f1/
SH256 hash:
0a351e21008b1210125bc55edc9838942ad40a8e64fd28dada7cfdbf728b7e6e
MD5 hash:
4818f50f932b66aecaf32630944c4717
SHA1 hash:
2a823c0d41a3e0feed74f31bbc0042473aed3a11
Link:
https://www.unpac.me/results/7bea0c27-36e2-4e5f-83b7-673f310cf0f1/
SH256 hash:
b2c900a5df76c0acba6def1f9bb35bd04b6431cb699dbf07ffd26141adb67369
MD5 hash:
94adf3b787640910c6923d265be89c36
SHA1 hash:
4de9c26e0ba6ddaa7700bb3d065afd267186a039
Link:
https://www.unpac.me/results/7bea0c27-36e2-4e5f-83b7-673f310cf0f1/
SH256 hash:
e4a80ed0ae3ff47c82625d508acc6bad93567cc69b5ad1872de7cacaf24dbe58
MD5 hash:
8ce87ef437d8d7f4574ad84a297b50eb
SHA1 hash:
3d48b685c14feab1cf1cdcd19ca5d8f00b450fd7
Link:
https://www.unpac.me/results/7bea0c27-36e2-4e5f-83b7-673f310cf0f1/
SH256 hash:
c34dfbc328de247d25d670c3b7853f1dddd2ec2607d5dbb0480743b45a15ea64
MD5 hash:
85b87384830444e6ab86a4a692ce96cc
SHA1 hash:
0d7d4614cf31d27e68ebf48e76fb1d308cc08152
Link:
https://www.unpac.me/results/7bea0c27-36e2-4e5f-83b7-673f310cf0f1/
SH256 hash:
878c2055975e65a5cb716bcad258e77ce3c1706f2824616a2ed2bbb2344fbec5
MD5 hash:
9b4e4041c2731241c61f5c01a8680372
SHA1 hash:
ef93b2347909953af82d89642aa1962dabe50ada
Link:
https://www.unpac.me/results/7bea0c27-36e2-4e5f-83b7-673f310cf0f1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/878c2055975e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/878c2055975e65a5cb716bcad258e77ce3c1706f2824616a2ed2bbb2344fbec5

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:NET
Create hunting rule
Author:malware-lu
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.

Cape
Cape
https://www.capesandbox.com/analysis/460357/

Comments