icedid | c8a23fdac88331fe7aaf6c8bf7002a20dd37371c3a1662fc7c8c30a265b33cde

General

Target

legal paper_12.09.2020.doc
Size

90KB
MD5

c85bf39939508b985c107fbb6b759ca0
SHA1

794e776c6bdc0301df5e8c07b30b87eaa5a787c0
SHA256

c8a23fdac88331fe7aaf6c8bf7002a20dd37371c3a1662fc7c8c30a265b33cde
SHA512

273b681eb33547d056743d7bd4965d0b6b5cbdc01724f73f6bc425b64891d0d4c9f7bb4a13128cf23e73b6803e1f518183467dfb9d30dfd980e9097e7ca2aa8a

Score

10^/10

icedid banker trojan

Malware Config

Signatures

IcedID, BokBot
IcedID is a banking trojan capable of stealing credentials.
trojan banker icedid

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	4280	4804	rundll32.exe	WINWORD.EXE

Blocklisted process makes network request 7 IoCs

Processes:

mshta.exerundll32.exe

flow pid process

12 3408 mshta.exe
28 368 rundll32.exe
30 368 rundll32.exe
37 368 rundll32.exe
39 368 rundll32.exe
41 368 rundll32.exe
42 368 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

368 rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
12	3408	mshta.exe
28	368	rundll32.exe
30	368	rundll32.exe
37	368	rundll32.exe
39	368	rundll32.exe
41	368	rundll32.exe
42	368	rundll32.exe

pid	process
368	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Modifies registry class 1 IoCs

Processes:

rundll32.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings rundll32.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4804 WINWORD.EXE
4804 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

368 rundll32.exe
368 rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings	rundll32.exe

pid	process
368	rundll32.exe
368	rundll32.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

WINWORD.EXE

pid	process
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE
4804	WINWORD.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

WINWORD.EXErundll32.exemshta.exe

description	pid	process	target process
PID 4804 wrote to memory of 4280	4804	WINWORD.EXE	rundll32.exe
PID 4804 wrote to memory of 4280	4804	WINWORD.EXE	rundll32.exe
PID 4280 wrote to memory of 3408	4280	rundll32.exe	mshta.exe
PID 4280 wrote to memory of 3408	4280	rundll32.exe	mshta.exe
PID 4280 wrote to memory of 3408	4280	rundll32.exe	mshta.exe
PID 3408 wrote to memory of 368	3408	mshta.exe	rundll32.exe
PID 3408 wrote to memory of 368	3408	mshta.exe	rundll32.exe
PID 3408 wrote to memory of 368	3408	mshta.exe	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\legal paper_12.09.2020.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4804

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" url.dll,OpenURL c:\users\public\index.hta
2⤵
- Process spawned unexpected child process
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4280

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\index.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:3408

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" c:\programdata\aBTxr.pdf,ShowDialogA -r
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\users\public\index.hta
MD5
7133458a8c80e91cf445e8f89a91a61f

SHA1
e036f155512bfa8042f5c23b8e8173de3c268990

SHA256
efa914508cc1201908007b7de441113d8becf5d2a5ba45383909fd5720da1563

SHA512
b879adcfc7c4a420f7f489529f815dab449539fe3c2498da365f6e941fe61600bc11ad2fbc5bb4756f075e8ace71759cd8ef8061fe306701d5110840a2ee0cb0

Download Submit
\??\c:\programdata\aBTxr.pdf
MD5
37d193d6a780432703ccf5d04a25f825

SHA1
eb34bd57e8770d33c0247ebe547ecda8c7138e3f

SHA256
e4e53017fb1dd41fce235e1016d059620668fea6210cb600bb1ba437bec2a659

SHA512
ab990182c9bb6abed8f68873b2c26526c51faf221bb4ffef834692f47dce9ee636c3bf8ddf4d89fa994341dda41b7a2ca88d714de66cd50bf64188e4abe0ffd1

Download Submit
\ProgramData\aBTxr.pdf
MD5
37d193d6a780432703ccf5d04a25f825

SHA1
eb34bd57e8770d33c0247ebe547ecda8c7138e3f

SHA256
e4e53017fb1dd41fce235e1016d059620668fea6210cb600bb1ba437bec2a659

SHA512
ab990182c9bb6abed8f68873b2c26526c51faf221bb4ffef834692f47dce9ee636c3bf8ddf4d89fa994341dda41b7a2ca88d714de66cd50bf64188e4abe0ffd1

Download Submit
memory/368-9-0x0000000000000000-mapping.dmp

Download
memory/3408-8-0x0000000000000000-mapping.dmp

Download
memory/4280-6-0x0000000000000000-mapping.dmp

Download
memory/4804-2-0x00007FFA5C9C0000-0x00007FFA5CFF7000-memory.dmp

Filesize
6.2MB

Download
memory/4804-4-0x000001BFE72DE000-0x000001BFE72E3000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads