ammyyadmin | 5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b

General

Target

HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe
Size

995KB
MD5

d8fd463f5ac1a9f91c1348dce1b9c0d0
SHA1

87a51b2806a844260a33e36bb7ec481713fd0d73
SHA256

5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b
SHA512

ccace492f2ffd44c239b8d9bb06febe5d0c8ec3573e072e5256b448bf53de2f3e91fe001250609603c84f3da9f8cd1ffa202356fe74e5607e358984c183fa473
SSDEEP

24576:rMjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsxo:mJ5gEKNikf3hBfUiWxo

Score

10^/10

ammyyadmin discovery rat upx

Malware Config

Signatures

Ammyy Admin
Remote admin tool with various capabilities.
rat ammyyadmin

AmmyyAdmin payload 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001225e-5.dat	family_ammyyadmin

Ammyyadmin family
ammyyadmin

Executes dropped EXE 1 IoCs

pid	Process
2732	budha.exe

Loads dropped DLL 1 IoCs

pid	Process
2188	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2188-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x000b00000001225e-5.dat	upx
behavioral1/memory/2732-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2188-10-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2732-49-0x0000000000400000-0x000000000040F000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	budha.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2732	2188	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe	30
PID 2188 wrote to memory of 2732	2188	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe	30
PID 2188 wrote to memory of 2732	2188	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe	30
PID 2188 wrote to memory of 2732	2188	HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe	30

C:\Users\Admin\AppData\Local\Temp\HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe
"C:\Users\Admin\AppData\Local\Temp\HashIs-5ca36273f06f80cd1b8aebcdb921fa8a44e1b66cf94fb48a44220feaa51be85b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Users\Admin\AppData\Local\Temp\budha.exe
  "C:\Users\Admin\AppData\Local\Temp\budha.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab32E5.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3307.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Users\Admin\AppData\Local\Temp\budha.exe

Filesize
995KB

MD5
d1841f9107a3abc0dbe6c1862e5ac02e

SHA1
30df3426af73199db367818dcaf7d90f7a31147d

SHA256
cfec32381215f3f8ed85d5bac2fe054f03029c204d6b6eb9a68561f8a2280b82

SHA512
11e26bd298daaa242229d0b45327aea24b0243d24e2f6c21c94d09fd481ed2c02ede2060554cad34c9dab719045866d09d7c0c5620ba60261c7bdca6416d5e1e

Download Submit
memory/2188-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2188-1-0x0000000001E80000-0x0000000001E81000-memory.dmp

Filesize
4KB

Download
memory/2188-4-0x0000000003340000-0x0000000003740000-memory.dmp

Filesize
4.0MB

Download
memory/2188-10-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2732-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2732-12-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2732-14-0x00000000032F0000-0x00000000036F0000-memory.dmp

Filesize
4.0MB

Download
memory/2732-49-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

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