icedid | 549cb76628b35238ae936cf8802162b8b6514b633be15fce41c086410f5292fe

General

Target

material 12.20.doc
Size

76KB
MD5

a96af6fea5159248793d711bf1b2d1eb
SHA1

851bcae7c7a22f5ac42ca27637053da54006c961
SHA256

549cb76628b35238ae936cf8802162b8b6514b633be15fce41c086410f5292fe
SHA512

351f045e26ed22a112ef00952957e865390be974579115df75d0a40d83d86934b2dc4459e9f56a0166e1fe3d15156d2655bf481f35dc660fe0742ecc4c2fba0b

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	2588	3932	rundll32.exe	WINWORD.EXE

Blocklisted process makes network request 7 IoCs

Processes:

mshta.exerundll32.exe

flow pid process

12 932 mshta.exe
27 1356 rundll32.exe
29 1356 rundll32.exe
36 1356 rundll32.exe
38 1356 rundll32.exe
40 1356 rundll32.exe
41 1356 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1356 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	932	mshta.exe
27	1356	rundll32.exe
29	1356	rundll32.exe
36	1356	rundll32.exe
38	1356	rundll32.exe
40	1356	rundll32.exe
41	1356	rundll32.exe

pid	process
1356	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

3932 WINWORD.EXE
3932 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

1356 rundll32.exe
1356 rundll32.exe

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

pid	process
1356	rundll32.exe
1356	rundll32.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

WINWORD.EXE

pid	process
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE
3932	WINWORD.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

WINWORD.EXErundll32.exemshta.exe

description	pid	process	target process
PID 3932 wrote to memory of 2588	3932	WINWORD.EXE	rundll32.exe
PID 3932 wrote to memory of 2588	3932	WINWORD.EXE	rundll32.exe
PID 2588 wrote to memory of 932	2588	rundll32.exe	mshta.exe
PID 2588 wrote to memory of 932	2588	rundll32.exe	mshta.exe
PID 2588 wrote to memory of 932	2588	rundll32.exe	mshta.exe
PID 932 wrote to memory of 1356	932	mshta.exe	rundll32.exe
PID 932 wrote to memory of 1356	932	mshta.exe	rundll32.exe
PID 932 wrote to memory of 1356	932	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\material 12.20.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:3932

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:2588

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:932

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" c:\programdata\aOhCq.pdf,ShowDialogA -r
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:1356

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

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Downloads

C:\users\public\index.hta
MD5
069a9cb4de9b5afc58f79f96efaf7214

SHA1
e63a3ed294045325f8fc7e00bb9a58ae55bde8d3

SHA256
5c26eac54ae3c0e05e0d526566c591dc0709c24b87e3f094e35cecca9b6b2774

SHA512
7e4bb29bc67d37c23671aaca49d2cde0b1281f2b89269c0f0310f46c2b8f99292ebefb73e62949097e95e4c1a18d2b3fb451c09c992f73118ae647652a443eca

Download Submit
\??\c:\programdata\aOhCq.pdf
MD5
c665948d39d19476f64a56a0ca37a338

SHA1
202fd1f5ac5410f20132ec1ec2a959a9e094cfce

SHA256
a48e2d9fcf1e7258733203612f11c74cd3db4d421ccbfd633d87ca935bd41265

SHA512
bef8671973fca8265ee6dcb8b7aeeaca8776633abd591e6ba5408df6d8f2c9f2b6969eb1f9eb8db1a11d1c06793d1af16783e8ce54da54a07fc33b50b0f484a6

Download Submit
\ProgramData\aOhCq.pdf
MD5
c665948d39d19476f64a56a0ca37a338

SHA1
202fd1f5ac5410f20132ec1ec2a959a9e094cfce

SHA256
a48e2d9fcf1e7258733203612f11c74cd3db4d421ccbfd633d87ca935bd41265

SHA512
bef8671973fca8265ee6dcb8b7aeeaca8776633abd591e6ba5408df6d8f2c9f2b6969eb1f9eb8db1a11d1c06793d1af16783e8ce54da54a07fc33b50b0f484a6

Download Submit
memory/932-7-0x0000000000000000-mapping.dmp

Download
memory/1356-8-0x0000000000000000-mapping.dmp

Download
memory/2588-5-0x0000000000000000-mapping.dmp

Download
memory/3932-2-0x00007FF906E30000-0x00007FF907467000-memory.dmp

Filesize
6.2MB

Download
memory/3932-3-0x000001938BC4D000-0x000001938BC56000-memory.dmp

Filesize
36KB

Download
memory/3932-4-0x000001938BC4D000-0x000001938BC56000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads