ammyyadmin | 34ee9da62967a53c3bf97f9301aa9353a3b42e5bd40c3122b929e50e08d146c5

Analysis

max time kernel
6s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2023 22:27

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General

Target

fcc84b2913606db9ed575affe65591ae.exe
Size

322KB
MD5

fcc84b2913606db9ed575affe65591ae
SHA1

a6b6c3e28d245df70c307c354eab877e5fb8efd2
SHA256

34ee9da62967a53c3bf97f9301aa9353a3b42e5bd40c3122b929e50e08d146c5
SHA512

5e6f9b0040acea1dce8463bd30eb7905de215fd378d112a4d50dd80303539c38e1f516b7512297c215ae77050445785f994a96b7c8ea94a075ea340229b7e0c7
SSDEEP

6144:MtU6T/wE1MFGonDrJU2kY1b94hsmjVTPdgBGE7YpqTFIVo+AxU36WDbl3:aU+/wEKAonDrFyhtTR+YQTL+Axg

Score

10^/10

ammyyadmin flawedammyy rat trojan upx

Malware Config

Signatures

Ammyy Admin
Remote admin tool with various capabilities.
rat ammyyadmin

AmmyyAdmin payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4012-4-0x0000000000400000-0x00000000004BE000-memory.dmp	family_ammyyadmin
behavioral2/memory/2372-7-0x0000000000400000-0x00000000004BE000-memory.dmp	family_ammyyadmin
behavioral2/memory/4888-6-0x0000000000400000-0x00000000004BE000-memory.dmp	family_ammyyadmin

FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
trojan flawedammyy

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

Processes:

fcc84b2913606db9ed575affe65591ae.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	fcc84b2913606db9ed575affe65591ae.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2372-0-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/4012-4-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/2372-7-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/4888-6-0x0000000000400000-0x00000000004BE000-memory.dmp	upx

Modifies data under HKEY_USERS 6 IoCs

Processes:

fcc84b2913606db9ed575affe65591ae.exe

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	fcc84b2913606db9ed575affe65591ae.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	fcc84b2913606db9ed575affe65591ae.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	fcc84b2913606db9ed575affe65591ae.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	fcc84b2913606db9ed575affe65591ae.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d56736608796d5b5b4e1552537fed9cfc1261b26b	fcc84b2913606db9ed575affe65591ae.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 200c620920f6377fadea7f545d2597a629a088e13e1737a2febdd34c6abdb740cc76c5cd8729cac5ab3b1ed44e8a0150ad36a15f824a0bb9b349f8aeba7ae26248326c81	fcc84b2913606db9ed575affe65591ae.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

fcc84b2913606db9ed575affe65591ae.exe

pid	Process
4888	fcc84b2913606db9ed575affe65591ae.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

fcc84b2913606db9ed575affe65591ae.exe

pid	Process
4888	fcc84b2913606db9ed575affe65591ae.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

fcc84b2913606db9ed575affe65591ae.exe

description	pid	Process	procid_target
PID 4012 wrote to memory of 4888	4012	fcc84b2913606db9ed575affe65591ae.exe	21
PID 4012 wrote to memory of 4888	4012	fcc84b2913606db9ed575affe65591ae.exe	21
PID 4012 wrote to memory of 4888	4012	fcc84b2913606db9ed575affe65591ae.exe	21

C:\Users\Admin\AppData\Local\Temp\fcc84b2913606db9ed575affe65591ae.exe
"C:\Users\Admin\AppData\Local\Temp\fcc84b2913606db9ed575affe65591ae.exe"
1⤵
PID:2372

C:\Users\Admin\AppData\Local\Temp\fcc84b2913606db9ed575affe65591ae.exe
"C:\Users\Admin\AppData\Local\Temp\fcc84b2913606db9ed575affe65591ae.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Users\Admin\AppData\Local\Temp\fcc84b2913606db9ed575affe65591ae.exe
  "C:\Users\Admin\AppData\Local\Temp\fcc84b2913606db9ed575affe65591ae.exe"
  2⤵
  - Checks computer location settings
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:4888

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

memory/2372-0-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/2372-7-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/4012-4-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/4888-6-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/4888-12-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download