MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8dce368d13b52cf207fa4139ed76adb6cc547ab99de8c3f6e5a5cbc6e391d26f. 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: 16
| SHA256 hash: | 8dce368d13b52cf207fa4139ed76adb6cc547ab99de8c3f6e5a5cbc6e391d26f |
|---|---|
| SHA3-384 hash: | 542a6264210b3f9cf0798a7c8f028d4ad3d586007c9a92f2089d77b83ce7d7ed4a82b3a9da20e50d6cd89b7f1d73eeb4 |
| SHA1 hash: | 5dcccb998335fb630982e93c4913210a6976892d |
| MD5 hash: | bffb672e3b17e3889adce6a43138259b |
| humanhash: | magnesium-angel-bulldog-mango |
| File name: | UJsVXNrCr4t1Yun.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 482'304 bytes |
| First seen: | 2022-04-07 05:27:43 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 12288:sE0ZQi5xSX3iB9pXjT+3il+o4OFS9HDebIlWQ60:sEIKqpX3Kil+ov49jebIlz |
| Threatray | 14'759 similar samples on MalwareBazaar |
| TLSH | T1DDA4124562BDA339CADC0B393952894123B5D9066526F3ADDFCC5CDB2F22FC1510A7A3 |
| File icon (PE): |  |
| dhash icon | b2cccccce8b2b28a (21 x AgentTesla, 14 x Formbook, 11 x SnakeKeylogger) |
| Reporter |  GovCERT_CH |
| Tags: | exe FormBook xloader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
275
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
UJsVXNrCr4t1Yun.exe
Verdict:
Malicious activity
Analysis date:
2022-04-07 05:40:15 UTC
Tags:
formbook trojan stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
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
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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:
Detection:
xloader
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-07 05:28:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 26 (76.92%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 14'749 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:bmmu loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
3801af428ca6eb2fb91d20d5ae28338a51fb4623f8b8f8f490f1e90dd6c1bc6e
MD5 hash:
4b85e67589d7823aa097d2f107648afe
SHA1 hash:
ce9176d508c42a591ba259d30b1cf6ba43800cdc
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
427d0dc940896c2dc2ca461380e6f990baec6096b51e518689c679f7ac90e8e4
MD5 hash:
be60db41bea94c8d7b721c153ae9784d
SHA1 hash:
f0fe8cb8582cf38599b46971897492ceb2610032
SH256 hash:
ae876591d4637a49d272130313f4d49ab074145ae5d2dff6a7dce89bcb37ea2a
MD5 hash:
2f088685d840d762eacc07f100296653
SHA1 hash:
a65c7fe23f85d58b0efb4adf6bdc42c9863f6562
SH256 hash:
e11871df824c3130e35f2c94d672404e18ebefddf3172d166f2e640ad3686c73
MD5 hash:
4379771ccd9b927712ef2505214161df
SHA1 hash:
6636b7b80e279de67c60b52277f566463afebf8e
SH256 hash:
8dce368d13b52cf207fa4139ed76adb6cc547ab99de8c3f6e5a5cbc6e391d26f
MD5 hash:
bffb672e3b17e3889adce6a43138259b
SHA1 hash:
5dcccb998335fb630982e93c4913210a6976892d
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
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 |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| 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
Dropped by
xloader
Delivery method
Distributed via e-mail attachment
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