2dc4c306da01adebbc2304f3d82d009bc3ca4a097209e4f6dd5400ef4f93cbc8

Analysis

max time kernel
140s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 04:54

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General

Target

$PLUGINSDIR/AhnRpt.exe
Size

289KB
MD5

c41c2078d41317491b8fc6ce81b825ab
SHA1

003ef5d4f98e098ae222ab49dac2e79f616df206
SHA256

a2c51b0b8258d1cb4ab44318aead8c276d6b3f255bf26f3cdf2601e727cd6f6b
SHA512

08e384eadf37be1185c4a0643edf02099f2e1a0422affda8cf72dc185338c797166673d58dbc997ba8a402900d8b4410c6d670d66e3c6a4e41fed6eacb37576d
SSDEEP

6144:bHlRVuQey8WQ740ygZaTr3KdadW66OcAO+evBToSlpIKUr8oSSI:TlR4dy8WQzNw3/dW66jA+vBToWaNr8ou

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral24/memory/1488-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral24/memory/1488-1-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

Checks for any installed AV software in registry 1 TTPs 1 IoCs

Security Software Discovery
T1518.001

Processes:

AhnRpt.exe

description ioc process

Key opened \REGISTRY\MACHINE\Software\AhnLab\V3IS80 AhnRpt.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Software\AhnLab\V3IS80	AhnRpt.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

AhnRpt.exe

description	ioc	process
File opened (read-only)	\??\G:	AhnRpt.exe
File opened (read-only)	\??\I:	AhnRpt.exe
File opened (read-only)	\??\N:	AhnRpt.exe
File opened (read-only)	\??\O:	AhnRpt.exe
File opened (read-only)	\??\S:	AhnRpt.exe
File opened (read-only)	\??\J:	AhnRpt.exe
File opened (read-only)	\??\R:	AhnRpt.exe
File opened (read-only)	\??\W:	AhnRpt.exe
File opened (read-only)	\??\Y:	AhnRpt.exe
File opened (read-only)	\??\T:	AhnRpt.exe
File opened (read-only)	\??\A:	AhnRpt.exe
File opened (read-only)	\??\B:	AhnRpt.exe
File opened (read-only)	\??\E:	AhnRpt.exe
File opened (read-only)	\??\H:	AhnRpt.exe
File opened (read-only)	\??\K:	AhnRpt.exe
File opened (read-only)	\??\L:	AhnRpt.exe
File opened (read-only)	\??\M:	AhnRpt.exe
File opened (read-only)	\??\V:	AhnRpt.exe
File opened (read-only)	\??\X:	AhnRpt.exe
File opened (read-only)	\??\P:	AhnRpt.exe
File opened (read-only)	\??\Q:	AhnRpt.exe
File opened (read-only)	\??\U:	AhnRpt.exe
File opened (read-only)	\??\Z:	AhnRpt.exe

Checks processor information in registry 2 TTPs 7 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

AhnRpt.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AhnRpt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AhnRpt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AhnRpt.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	AhnRpt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	AhnRpt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz	AhnRpt.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2	AhnRpt.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AhnRpt.exe

description pid process

Token: SeDebugPrivilege 1488 AhnRpt.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AhnRpt.exe

pid process

1488 AhnRpt.exe
1488 AhnRpt.exe

description	pid	process
Token: SeDebugPrivilege	1488	AhnRpt.exe

pid	process
1488	AhnRpt.exe
1488	AhnRpt.exe

C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\AhnRpt.exe
"C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\AhnRpt.exe"
1⤵
- Checks for any installed AV software in registry
- Enumerates connected drives
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1488

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4460,i,15142778360084620907,1763097090506261076,262144 --variations-seed-version --mojo-platform-channel-handle=4372 /prefetch:8
1⤵
PID:4008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Software Discovery

T1518

Security Software Discovery

T1518.001

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1488-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1488-1-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download