6af00548e6860b7514280275545254574aaf0a9ece94fa3d231a3700d0b19988

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2023, 14:27

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General

Target

NEAS.4de516c725c6ad8b4efa69177efa2642.exe
Size

187KB
MD5

4de516c725c6ad8b4efa69177efa2642
SHA1

396334d17e5411e1d832956102a7cf75e71db761
SHA256

6af00548e6860b7514280275545254574aaf0a9ece94fa3d231a3700d0b19988
SHA512

cc29436e9608b3999f4bee5f395228d7389feb09eb80c5622081d2986b3808eeb34ce876701b4386e29aaf4544e803ddcf4dc49b4222ab16aaa244e6f3ba3965
SSDEEP

3072:Dv5Ls27BIJHluLyXuEQ00UIIIhg6XXXDzXXX13612IIIre36TAXXXhgavcXXXLIX:DBs27GluLyXxQQIIIhg6XXXDzXXX13sE

Score

10^/10

dropper persistence trojan

Malware Config

Signatures

Malware Backdoor - Berbew 2 IoCs

Berbew is a malware infection classified as a 'backdoor' Trojan. This malicious program's primary function is to cause chain infections - it can download/install additional malware such as other Trojans, ransomware, and cryptominers.

persistence dropper trojan

resource	yara_rule
behavioral2/files/0x0007000000022e43-2.dat	family_berbew
behavioral2/files/0x0007000000022e43-3.dat	family_berbew

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Control Panel\International\Geo\Nation	NEAS.4de516c725c6ad8b4efa69177efa2642.exe

Executes dropped EXE 1 IoCs

pid	Process
2888	hauhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\hauhost.exe	NEAS.4de516c725c6ad8b4efa69177efa2642.exe
File created	C:\Windows\Debug\hauhost.exe	NEAS.4de516c725c6ad8b4efa69177efa2642.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	hauhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	hauhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4984	NEAS.4de516c725c6ad8b4efa69177efa2642.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4984 wrote to memory of 4440	4984	NEAS.4de516c725c6ad8b4efa69177efa2642.exe	89
PID 4984 wrote to memory of 4440	4984	NEAS.4de516c725c6ad8b4efa69177efa2642.exe	89
PID 4984 wrote to memory of 4440	4984	NEAS.4de516c725c6ad8b4efa69177efa2642.exe	89

C:\Users\Admin\AppData\Local\Temp\NEAS.4de516c725c6ad8b4efa69177efa2642.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.4de516c725c6ad8b4efa69177efa2642.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEAS4D~1.EXE > nul
  2⤵
  PID:4440

C:\Windows\Debug\hauhost.exe
C:\Windows\Debug\hauhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\hauhost.exe

Filesize
187KB

MD5
e87d0669dc3f9322459c38b66176fbf3

SHA1
f289623c799eac3da3e943b8ce18e33b5b7bebf9

SHA256
df6db9192f9e8aebb62bc8f4ebc8c44f7815d694be286c312ff62094b2ac39bb

SHA512
b72ff37f1dc43de897e57d23b36386d67dd1ba477ce1f14cdeb00b2b6b59ff0bc86d088bc507ec780b4984aba178140b43060304bc9c0be6e7c7e9e5bc8671d8

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C:\Windows\debug\hauhost.exe

Filesize
187KB

MD5
e87d0669dc3f9322459c38b66176fbf3

SHA1
f289623c799eac3da3e943b8ce18e33b5b7bebf9

SHA256
df6db9192f9e8aebb62bc8f4ebc8c44f7815d694be286c312ff62094b2ac39bb

SHA512
b72ff37f1dc43de897e57d23b36386d67dd1ba477ce1f14cdeb00b2b6b59ff0bc86d088bc507ec780b4984aba178140b43060304bc9c0be6e7c7e9e5bc8671d8

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads